use of bibliography in research report

How to Write a Bibliography for a Research Paper

Do not try to “wow” your instructor with a long bibliography when your instructor requests only a works cited page. It is tempting, after doing a lot of work to research a paper, to try to include summaries on each source as you write your paper so that your instructor appreciates how much work you did. That is a trap you want to avoid. MLA style, the one that is most commonly followed in high schools and university writing courses, dictates that you include only the works you actually cited in your paper—not all those that you used.

Academic Writing, Editing, Proofreading, And Problem Solving Services

Get 10% off with 24start discount code, assembling bibliographies and works cited.

• If your assignment calls for a bibliography, list all the sources you consulted in your research.
• If your assignment calls for a works cited or references page, include only the sources you quote, summarize, paraphrase, or mention in your paper.
• If your works cited page includes a source that you did not cite in your paper, delete it.
• All in-text citations that you used at the end of quotations, summaries, and paraphrases to credit others for their ideas,words, and work must be accompanied by a cited reference in the bibliography or works cited. These references must include specific information about the source so that your readers can identify precisely where the information came from.The citation entries on a works cited page typically include the author’s name, the name of the article, the name of the publication, the name of the publisher (for books), where it was published (for books), and when it was published.

The good news is that you do not have to memorize all the many ways the works cited entries should be written. Numerous helpful style guides are available to show you the information that should be included, in what order it should appear, and how to format it. The format often differs according to the style guide you are using. The Modern Language Association (MLA) follows a particular style that is a bit different from APA (American Psychological Association) style, and both are somewhat different from the Chicago Manual of Style (CMS). Always ask your teacher which style you should use.

A bibliography usually appears at the end of a paper on its own separate page. All bibliography entries—books, periodicals, Web sites, and nontext sources such radio broadcasts—are listed together in alphabetical order. Books and articles are alphabetized by the author’s last name.

Most teachers suggest that you follow a standard style for listing different types of sources. If your teacher asks you to use a different form, however, follow his or her instructions. Take pride in your bibliography. It represents some of the most important work you’ve done for your research paper—and using proper form shows that you are a serious and careful researcher.

Bibliography Entry for a Book

A bibliography entry for a book begins with the author’s name, which is written in this order: last name, comma, first name, period. After the author’s name comes the title of the book. If you are handwriting your bibliography, underline each title. If you are working on a computer, put the book title in italicized type. Be sure to capitalize the words in the title correctly, exactly as they are written in the book itself. Following the title is the city where the book was published, followed by a colon, the name of the publisher, a comma, the date published, and a period. Here is an example:

Format : Author’s last name, first name. Book Title. Place of publication: publisher, date of publication.

• A book with one author : Hartz, Paula.  Abortion: A Doctor’s Perspective, a Woman’s Dilemma . New York: Donald I. Fine, Inc., 1992.
• A book with two or more authors : Landis, Jean M. and Rita J. Simon.  Intelligence: Nature or Nurture?  New York: HarperCollins, 1998.

Bibliography Entry for a Periodical

A bibliography entry for a periodical differs slightly in form from a bibliography entry for a book. For a magazine article, start with the author’s last name first, followed by a comma, then the first name and a period. Next, write the title of the article in quotation marks, and include a period (or other closing punctuation) inside the closing quotation mark. The title of the magazine is next, underlined or in italic type, depending on whether you are handwriting or using a computer, followed by a period. The date and year, followed by a colon and the pages on which the article appeared, come last. Here is an example:

Format:  Author’s last name, first name. “Title of the Article.” Magazine. Month and year of publication: page numbers.

• Article in a monthly magazine : Crowley, J.E.,T.E. Levitan and R.P. Quinn.“Seven Deadly Half-Truths About Women.”  Psychology Today  March 1978: 94–106.
• Article in a weekly magazine : Schwartz, Felice N.“Management,Women, and the New Facts of Life.”  Newsweek  20 July 2006: 21–22.
• Signed newspaper article : Ferraro, Susan. “In-law and Order: Finding Relative Calm.”  The Daily News  30 June 1998: 73.
• Unsigned newspaper article : “Beanie Babies May Be a Rotten Nest Egg.”  Chicago Tribune  21 June 2004: 12.

Bibliography Entry for a Web Site

For sources such as Web sites include the information a reader needs to find the source or to know where and when you found it. Always begin with the last name of the author, broadcaster, person you interviewed, and so on. Here is an example of a bibliography for a Web site:

Format : Author.“Document Title.” Publication or Web site title. Date of publication. Date of access.

Example : Dodman, Dr. Nicholas. “Dog-Human Communication.”  Pet Place . 10 November 2006.  23 January 2014 < http://www.petplace.com/dogs/dog-human-communication-2/page1.aspx >

After completing the bibliography you can breathe a huge sigh of relief and pat yourself on the back. You probably plan to turn in your work in printed or handwritten form, but you also may be making an oral presentation. However you plan to present your paper, do your best to show it in its best light. You’ve put a great deal of work and thought into this assignment, so you want your paper to look and sound its best. You’ve completed your research paper!

Back to  How To Write A Research Paper .

ORDER HIGH QUALITY CUSTOM PAPER

• Try for free

How to Write a Bibliography (MLA, APA Examples)

Learn how to easily write a bibliography by following the format outlined in this article.

This resource will help your students properly cite different resources in the bibliography of a research paper, and how to format those citations, for books, encyclopedias, films, websites, and people.

What is a bibliography?

According to Infoplease.com, A bibliography is a list of the types of sources you used to get information for your report. It is included at the end of your report, on the last page (or last few pages).

What are the types of bibliography styles (MLA, APA, etc.)?

The 3 most common bibliography/citation styles are:

• MLA Style: The Modern Language Association works cited page style
• APA Style: The American Psychological Association style
• Chicago Style: The bibliography style defined by the Chicago Manual of Style

We’ll give examples of how to create bibliography entries in various styles further down in this article. 

What sources do you put in a bibliography?

An annotated bibliography should include a reference list of any sources you use in writing a research paper. Any printed sources from which you use a text citation, including books, websites, newspaper articles, journal articles, academic writing, online sources (such as PDFs), and magazines should be included in a reference list. In some cases, you may need or want to cite conversations or interviews, works of art, visual works such as movies, television shows, or documentaries - these (and many others) can also be included in a reference list.

How to get started writing your bibliography

You will find it easier to prepare your MLA, APA, or Chicago annotated bibliography if you keep track of each book, encyclopedia, journal article, webpage or online source you use as you are reading and taking notes. Start a preliminary, or draft, bibliography by listing on a separate sheet of paper all your sources. Note down the full title, author’s last name, place of publication, web address, publisher, and date of publication for each source.

Haven't started your paper yet and need an outline? These sample essay outlines include a research paper outline from an actual student paper.

How to write a bibliography step-by-step (with examples)

General Format: Author (last name first). Title of the book. Publisher, Date of publication.

MLA Style: Sibley, David Allen. What It’s Like to Be a Bird. From Flying to Nesting, Eating to Singing, What Birds Are Doing, and Why. Alfred A. Knopf, 2020.

APA Style: Sibley, D.A. (2020). What It’s Like to Be a Bird. From Flying to Nesting, Eating to Singing, What Birds Are Doing, and Why . Alfred A. Knopf.

Notes: Use periods, not commas, to separate the data in the entry. Use a hanging indent if the entry is longer than one line. For APA style, do not use the full author’s first name.

Websites or webpages:

  MLA Style: The SB Nation Family of Sites. Pension Plan Puppets: A Toronto Maple Leafs Blog, 2022, www.pensionplanpuppets.com. Accessed 15 Feb. 2022.

APA Style: American Heart Association. (2022, April 11). How to keep your dog’s heart healthy. https://www.heart.org/en/news/2022/04/11/how-to-keep-your-dogs-heart-healthy

Online news article from a newspaper site:

APA Style: Duehren, A. (2022, April 9). Janet Yellen faces challenge to keep pressure on Russia. Wall Street Journal. https://www.wsj.com/articles/janet-yellen-faces-challenge-to-keep-pressure-on-russia-while-addressing-global-consequences-11650366000

Print journal articles:

MLA Style: Booch, Grady. "Patterns in Object-Oriented Design." IEEE Software Engineering, vol. 6, no. 6, 2006, pp. 31-50.

APA Style: Booch, G. (2006). Patterns in object-oriented design. IEEE Software Engineering, 6(6), 31–50.

Note: It is suggested that you include a DOI and a webpage address when referencing either a printed journal article, and electronic journal article, or an journal article that appears in both formats. 

MLA Style: Gamma, Eric, and Peter A. Coad. “Exceptions to the Unified Modeling Language in Python Patterns.” IEEE Software Engineering, vol. 2, no. 6, 8 Mar. 2006, pp. 190-194. O’Reilly Software Engineering Library, https://doi.org/10.1006/se.20061. Accessed 26 May 2009.

APA Style: Masters, H., Barron, J., & Chanda, L. (2017). Motivational interviewing techniques for adolescent populations in substance abuse counseling. NAADAC Notes, 7(8), 7–13. https://www.naadac.com/notes/adolescent-techniques

ML:A Style: @Grady_Booch. “That’s a bold leap over plain old battery power cars.” Twitter, 13 Mar. 2013, 12:06 p.m., https://twitter.com/Grady_Booch/status/1516379006727188483.

APA Style: Westborough Library [@WestboroughLib]. (2022, April 12). Calling all 3rd through 5th grade kids! Join us for the Epic Writing Showdown! Winner receives a prize! Space is limited so register, today. loom.ly/ypaTG9Q [Tweet; thumbnail link to article]. Twitter. https://twitter.com/WestboroughLib/status/1516373550415896588.

Print magazine articles:

General format: Author (last name first), "Article Title." Name of magazine. Volume number, (Date): page numbers.

MLA Style: Stiteler, Sharon. "Tracking Red-Breasted Grosbeak Migration." Minnesota Bird Journal, 7 Sept. 2019, pp. 7-11.

APA Style: Jordan, Jennifer, "Filming at the Top of the World." Museum of Science Magazine. Volume 47, No. 1, (Winter 1998): p. 11.

Print newspaper articles:

General format: Author (last name first), "Article Title." Name of newspaper, city, state of publication. (date): edition if available, section, page number(s).

MLA Style: Adelman, Martin. "Augustus Announces Departure from City Manager Post." New York Times, late ed., 15 February 2020, p. A1

APA Style: Adelman, M. (2020, February 15). Augustus announced departure from city manager post. New York Times, A1.

Encyclopedias:

General Format: Encyclopedia Title, Edition Date. Volume Number, "Article Title," page numbers.

MLA Style: “Gorillas.” The Encyclopedia Brittanica. 15th ed. 2010.

APA Style: Encyclopedia Brittanica, Inc. (1997.) Gorillas. In The Encyclopedia Brittanica (15th ed., pp. 50-51). Encyclopedia Brittanica, Inc.

Personal interviews:

General format: Full name (last name first). Personal Interview. (Occupation.) Date of interview.

MLA Style: Smithfield, Joseph. Personal interview. 19 May 2014.

APA Style: APA does not require a formal citation for a personal interview. Published interviews from other sources should be cited accordingly.

Films and movies:

General format: Title, Director, Distributor, Year.

MLA Style: Fury. Directed by David Ayer, performances by Brad Pitt, Shia LaBeouf, Jon Bernthal, Sony Pictures, 2014.

APA Style: Ayer, D. (Director). (2014). Fury [Film]. Sony Pictures.

Featured High School Resources

Related Resources

About the author

TeacherVision Editorial Staff

The TeacherVision editorial team is comprised of teachers, experts, and content professionals dedicated to bringing you the most accurate and relevant information in the teaching space.

• Utility Menu

fa3d988da6f218669ec27d6b6019a0cd

A publication of the harvard college writing program.

Harvard Guide to Using Sources 

• The Honor Code
• Bibliography

If you are using Chicago style footnotes or endnotes, you should include a bibliography at the end of your paper that provides complete citation information for all of the sources you cite in your paper. Bibliography entries are formatted differently from notes. For bibliography entries, you list the sources alphabetically by last name, so you will list the last name of the author or creator first in each entry. You should single-space within a bibliography entry and double-space between them. When an entry goes longer than one line, use a hanging indent of .5 inches for subsequent lines. Here’s a link to a sample bibliography that shows layout and spacing . You can find a sample of note format here .

Complete note vs. shortened note

Here’s an example of a complete note and a shortened version of a note for a book:

1. Karen Ho, Liquidated: An Ethnography of Wall Street (Durham: Duke University Press, 2009), 27-35.

1. Karen Ho, Liquidated , 27-35.

Note vs. Bibliography entry

The bibliography entry that corresponds with each note is very similar to the longer version of the note, except that the author’s last and first name are reversed in the bibliography entry. To see differences between note and bibliography entries for different types of sources, check this section of the Chicago Manual of Style .

For Liquidated , the bibliography entry would look like this:

Ho, Karen, Liquidated: An Ethnography of Wall Street . Durham: Duke University Press, 2009.

Citing a source with two or three authors

If you are citing a source with two or three authors, list their names in your note in the order they appear in the original source. In the bibliography, invert only the name of the first author and use “and” before the last named author.

1. Melissa Borja and Jacob Gibson, “Internationalism with Evangelical Characteristics: The Case of Evangelical Responses to Southeast Asian Refugees,” The Review of Faith & International Affairs 17, no. 3 (2019): 80-81, https://doi.org/10.1080/15570274.2019.1643983 .

Shortened note:

1. Borja and Gibson, “Internationalism with Evangelical Characteristics,” 80-81.

Bibliography:

Borja, Melissa, and Jacob Gibson. “Internationalism with Evangelical Characteristics: The Case of Evangelical Responses to Southeast Asian Refugees.” The Review of Faith & International Affairs 17. no. 3 (2019): 80–93. https://doi.org/10.1080/15570274.2019.1643983 .

Citing a source with more than three authors

If you are citing a source with more than three authors, include all of them in the bibliography, but only include the first one in the note, followed by et al. ( et al. is the shortened form of the Latin et alia , which means “and others”).

1. Justine M. Nagurney, et al., “Risk Factors for Disability After Emergency Department Discharge in Older Adults,” Academic Emergency Medicine 27, no. 12 (2020): 1271.

Short version of note:

1. Justine M. Nagurney, et al., “Risk Factors for Disability,” 1271.

Nagurney, Justine M., Ling Han, Linda Leo‐Summers, Heather G. Allore, Thomas M. Gill, and Ula Hwang. “Risk Factors for Disability After Emergency Department Discharge in Older Adults.” Academic Emergency Medicine 27, no. 12 (2020): 1270–78. https://doi.org/10.1111/acem.14088 .

Citing a book consulted online

If you are citing a book you consulted online, you should include a URL, DOI, or the name of the database where you found the book.

1. Karen Ho, Liquidated: An Ethnography of Wall Street (Durham: Duke University Press, 2009), 27-35, https://doi-org.ezp-prod1.hul.harvard.edu/10.1215/9780822391371 .

Bibliography entry:

Ho, Karen. Liquidated: An Ethnography of Wall Street . Durham: Duke University Press, 2009. https://doi-org.ezp-prod1.hul.harvard.edu/10.1215/9780822391371 .

Citing an e-book consulted outside of a database

If you are citing an e-book that you accessed outside of a database, you should indicate the format. If you read the book in a format without fixed page numbers (like Kindle, for example), you should not include the page numbers that you saw as you read. Instead, include chapter or section numbers, if possible.

1. Karen Ho, Liquidated: An Ethnography of Wall Street (Durham: Duke University Press, 2009), chap. 2, Kindle.

Ho, Karen. Liquidated: An Ethnography of Wall Street . Durham: Duke University Press, 2009. Kindle.

• Citation Management Tools
• In-Text Citations
• Examples of Commonly Cited Sources
• Frequently Asked Questions about Citing Sources in Chicago Format
• Sample Bibliography

PDFs for This Section

• Citing Sources
• Online Library and Citation Tools

• Bipolar Disorder
• Therapy Center
• When To See a Therapist
• Types of Therapy
• Best Online Therapy
• Best Couples Therapy
• Best Family Therapy
• Managing Stress
• Sleep and Dreaming
• Understanding Emotions
• Self-Improvement
• Healthy Relationships
• Student Resources
• Personality Types
• Guided Meditations
• Verywell Mind Insights
• 2023 Verywell Mind 25
• Mental Health in the Classroom
• Editorial Process
• Meet Our Review Board
• Crisis Support

How to Write a Bibliography in APA Format

Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

Emily is a board-certified science editor who has worked with top digital publishing brands like Voices for Biodiversity, Study.com, GoodTherapy, Vox, and Verywell.

• APA Bibliography
• How to Create One
• Why You Need It

Sample Bibliography

An APA format bibliography lists all of the sources that might be used in a paper. A bibliography can be a great tool to help you keep track of information during the research and writing process. In some cases, your instructor may require you to include a bibliography as part of your assignment.

At a Glance

A well-written APA format bibliography can help you keep track of information and sources as you research and write your psychology paper. To create a bibliography, gather up all of the sources that you might use in your paper. Create an APA format reference for each source and then write a brief annotation. Your annotation should be a brief summary of what each reference is about. You can quickly refer to these annotations When writing your paper and determine which to include.

What Is an APA Format Bibliography?

An APA format bibliography is an alphabetical listing of all sources that might be used to write an academic paper, essay, article, or research paper—particularly work that is covering psychology or psychology-related topics. APA format is the official style of the American Psychological Association (APA). This format is used by many psychology professors, students, and researchers.

Even if it is not a required part of your assignment, writing a bibliography can help you keep track of your sources and make it much easier to create your final reference page in proper APA format.

Creating an APA Bibliography

A bibliography is similar in many ways to a reference section , but there are some important differences. While a reference section includes every source that was actually used in your paper, a bibliography may include sources that you considered using but may have dismissed because they were irrelevant or outdated.

Bibliographies can be a great way to keep track of information you might want to use in your paper and to organize the information that you find in different sources. The following are four steps you can follow to create your APA format bibliography.

Start on a New Page

Your working bibliography should be kept separate from the rest of your paper. Start it on a new page, with the title "Bibliography" centered at the top and in bold text. Some people use the title "References" instead, so it's best to check with your professor or instructor about which they prefer you to use.

Gather Your Sources

Compile all the sources you might possibly use in your paper. While you might not use all of these sources in your paper, having a complete list will make it easier later on when you prepare your reference section.

Gathering your sources can be particularly helpful when outlining and writing your paper.

By quickly glancing through your working bibliography, you will be able to get a better idea of which sources will be the most appropriate to support your thesis and main points.

Reference Each Source

Your references should be listed alphabetically by the author’s last name, and they should be double-spaced. The first line of each reference should be flush left, while each additional line of a single reference should be a few spaces to the right of the left margin, which is known as a hanging indent.

The format of each source is as follows for academic journals:

• Last name of first author (followed by their first initial)
• The year the source was published in parentheses
• The title of the source
• The journal that published the source (in italics)
• The volume number, if applicable (in italics)
• The issue number, if applicable
• Page numbers (in parentheses)
• The URL or "doi" in lowercase letters followed by a colon and the doi number, if applicable

The following examples are scholarly articles in academic journals, cited in APA format:

• Kulacaoglu, F., & Kose, S. (2018). Borderline personality disorder (BPD): In the midst of vulnerability, chaos, and awe.  Brain sciences ,  8 (11), 201. doi:10.3390/brainsci8110201
• Cattane, N., Rossi, R., & Lanfredi, M. (2017). Borderline personality disorder and childhood trauma: exploring the affected biological systems and mechanisms.  BMC Psychiatry,   18 (221). doi:10.1186/s12888-017-1383-2

Visit the American Psychological Association's website for more information on citing other types of sources including online media, audiovisual media, and more.

Create an Annotation for Each Source

Normally a bibliography contains only references' information, but in some cases you might decide to create an annotated bibliography. An annotation is a summary or evaluation of the source.

An annotation is a brief description of approximately 150 words describing the information in the source, your evaluation of its credibility, and how it pertains to your topic. Writing one of these for each piece of research will make your writing process faster and easier.

This step helpful in determining which sources to ultimately use in your paper. Your instructor may also require it as part of the assignment so they can assess your thought process and understanding of your topic.

Reasons to Write a Bibliography

One of the biggest reasons to create an APA format bibliography is simply to make the research and writing process easier.

If you do not have a comprehensive list of all of your references, you might find yourself scrambling to figure out where you found certain bits of information that you included in your paper.

A bibliography is also an important tool that your readers can use to access your sources.

While writing an annotated bibliography might not be required for your assignment, it can be a very useful step. The process of writing an annotation helps you learn more about your topic, develop a deeper understanding of the subject, and become better at evaluating various sources of information.

The following is an example of an APA format bibliography by the website EasyBib:

There are many online resources that demonstrate different formats of bibliographies, including the American Psychological Association website . Purdue University's Online Writing Lab also has examples of formatting an APA format bibliography.

Check out this video on their YouTube channel which provides detailed instructions on formatting an APA style bibliography in Microsoft Word.

You can check out the Purdue site for more information on writing an annotated APA bibliography as well.

What This Means For You

If you are taking a psychology class, you may be asked to create a bibliography as part of the research paper writing process. Even if your instructor does not expressly require a bibliography, creating one can be a helpful way to help structure your research and make the writing process more manageable.

For psychology majors , it can be helpful to save any bibliographies you have written throughout your studies so that you can refer back to them later when studying for exams or writing papers for other psychology courses.

American Psychological Association. Publication Manual of the American Psychological Association . 7th Edition. Washington, DC: American Psychological Association; 2020.

Masic I. The importance of proper citation of references in biomedical articles.   Acta Inform Med . 2013;21(3):148–155. doi:10.5455/aim.2013.21.148-155

American Psychological Association. How do you format a bibliography in APA Style?

Cornell University Library. How to prepare an annotated bibliography: The annotated bibliography .

By Kendra Cherry, MSEd Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

authorsafterdark.org

research paper writing tips from the top experts

How to Write a Bibliography for a Research Paper: Guide & Samples

A bibliography is undoubtedly one of the most essential parts of every research paper. A research paper without a bibliography equals poorly conducted research. As such, the importance of a bibliography in a research paper cannot be overemphasized.

To produce well-constructed research, you must consult other authors and use their materials to support your argument. This is the only way to give these authors their credit; by listing them out in your bibliography.

Acknowledging the sources used in writing the topic is an effective approach to avoiding plagiarism in your research. It is also a great way to provide and inform other scholars with sources they may not be aware of. This article seeks to provide the format of bibliography and how to write a good bibliography for your research paper.

What Is a Bibliography in a Research Paper?

Simply put, a bibliography is a list of works used in writing a research paper. Every research paper must contain a list of sources the author used in preparing the research paper. Your source can range from books to scholarly papers, speeches, private records, interviews, letters, websites, and other sources.

Your research paper was not created in a vacuum; you must have consulted other authors or sourced to create enriched content. Therefore, at the end of your research, you must attach a list of all the sources used.

How to Write Bibliography for Research Paper

Writing a bibliography isn’t so hard; all you need is a list of sources used and a format for documenting them. To make things easier for you, prepare a draft comprising all of the sources you must have used. Ensure you include the book’s full title, the author, place of publication, publication date, and publisher. All sources must be listed out alphabetically using the authors’ names.

It is also important to note that there are different formats for writing a bibliography. As such, you must decide which format to employ in your research paper. You can format your work in Modern Language Association (MLA) format, American Psychological Association (APA), or Chicago Manual of Style (CMS). Regardless of which you choose, ensure that it is done correctly.

How to Format a Bibliography

Once you have an idea of how to format a bibliography, most of the work is completed. However, when writing it you need to pay close attention to each format and its content to avoid mixing them up. For printed sources, the bibliography of a research paper should provide the following:

• Author’s name
• Title of publication (provide the title of the article if it’s a journal, magazine, or encyclopedia)
• Date of publication
• Place of Publication of a book
• The publishing house of a book
• Volume number of magazine or encyclopedia
• The page numbers

To document sources from a website, you need to document the following:

• The author or editor’s name if there’s any
• Title of the page
• The organization of the webpage
• The URL of the website
• The date the information was gotten from the website

The common formats for writing a bibliography in a research paper are MLA and APA style. A bibliography is known as “Works Cited” in MLA and on the other hand, it is called “References List” in APA. Though both formats contain similar information about the sources used, there are still slight differences in formatting style. Here’s  what MLA and APA bibliography styles should look like.

How to Write a Bibliography APA

Your research paper’s bibliography must be attached at the end of it with the tag “References” at the center. In addition to this, you need to pay attention to the basics of APA style, such as capitalization, abbreviation, punctuation, underlining or italics, hanging indentation, and others. Here’s a research paper bibliography example in APA style:

Author’s last name, first initial. (Publication date). Book title . City of Publication: Publishing company.

• For encyclopedia:

Author’s last name, first initial. (Date). Title of Article. Title of Encyclopedia (Volumes, pages). City of Publication: Publishing Company.

• For magazine and newspaper articles:

Author’s last name, first initial. (Publication Date). Article title. Periodical title, Volume number (issue number if there’s any), page numbers.

How to Write a Bibliography MLA

Bibliography in MLA format is called “Works cited” and must be arranged in alphabetical order according to the author’s name. Here’s the required format for MLA style for varying sources:

“Author’s last name, first name. Book title. Publication City: Publishing company, publication date.”

• Encyclopedia & dictionary:

“Author’s last name, first name. “Title of Article.” Encyclopedia’s Title. Date.”

• Magazine & newspaper:

“Author’s last name, first name. “Article title.” Periodical title volume Date: inclusive pages.”

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

How to Create a Bibliography

• First Online: 01 October 2023

Cite this chapter

• Rohan Reddy 4 ,
• Samuel Sorkhi 4 ,
• Saager Chawla 4 &
• Mahadevan Raj Rajasekaran 5  

612 Accesses

This chapter describes the fundamental principles and practices of referencing sources in scientific writing and publishing. Understanding plagiarism and improper referencing of the source material is paramount to producing original work that contains an authentic voice. Citing references helps authors to avoid plagiarism, give credit to the original author, and allow potential readers to refer to the legitimate sources and learn more information. Furthermore, quality references serve as an invaluable resource that can enlighten future research in a field. This chapter outlines fundamental aspects of referencing as well as how these sources are formatted as per recommended citation styles. Appropriate referencing is an important tool that can be utilized to develop the credibility of the author and the arguments presented. Additionally, online software can be useful in helping the author organize their sources and promote proper collaboration in scientific writing.

• Referencing
• Harvard and Vancouver styles
• Referencing software
• Scientific writing

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

• Available as PDF
• Read on any device
• Instant download
• Own it forever
• Available as EPUB and PDF
• Durable hardcover edition
• Dispatched in 3 to 5 business days
• Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

AWELU (2022) The functions of references. Lund University. https://www.awelu.lu.se/referencing/the-functions-of-references/ . Accessed 28 Dec 2022

Masic I (2013) The importance of proper citation of references in biomedical articles. Acta Inform Med 21(3):148–155

Article   PubMed   PubMed Central   Google Scholar  

Neville C (2012) Referencing: principles, practice and problems. RGUHS J Pharm Sci 2(2):1–8

Google Scholar  

Horkoff T (2015) Writing for success 1st Canadian edition: BCcampus. Chapter 7. Sources: choosing the right ones. https://opentextbc.ca/writingforsuccess/chapter/chapter-7-sources-choosing-the-right-ones/ . Accessed 28 Dec 2022

A guide to database and catalog searching: bibliographic elements. Northwestern State University. https://libguides.nsula.edu/howtosearch/bibelements . Updated 5 Aug 2021; Accessed 28 Dec 2022

Research process: step 7: citing and keeping track of sources. University of Rio Grande. https://libguides.rio.edu/c.php?g=620382&p=4320145 . Updated 12 Dec 2022; Accessed 28 Dec 2022

Pears R, Shields G (2022) Cite them right. Bloomsbury Publishing

Harvard system (1999) Bournemouth University. http://ibse.hk/Harvard_System.pdf . Accessed 28 Dec 2022

Gitanjali B (2004) Reference styles and common problems with referencing: Medknow. https://www.jpgmonline.com/documents/author/24/11_Gitanjali_3.pdf . Accessed 28 Dec 2022

Williams K, Spiro J, Swarbrick N (2008) How to reference Harvard referencing for Westminster Institute students. Westminster Institute of Education Oxford Brookes University

Harvard: reference list and bibliography: University of Birmingham. 2022. https://intranet.birmingham.ac.uk/as/libraryservices/library/referencing/icite/harvard/referencelist.aspx . Accessed 28 Dec 2022

Limited SN (2017) Responsible referencing. Nat Methods 14(3):209

Article   Google Scholar  

Hensley MK (2011) Citation management software: features and futures. Ref User Serv Q 50(3):204–208

Ramesh A, Rajasekaran MR (2014) Zotero: open-source bibliography management software. RGUHS J Pharm Sci 4:3–6

Shapland M (2000) Evaluation of reference management software on NT (comparing Papyrus with Procite, Reference Manager, Endnote, Citation, GetARef, Biblioscape, Library Master, Bibliographica, Scribe, Refs). University of Bristol

EndNote 20. Clarivate. 2022. https://endnote.com/product-details . Accessed 28 Dec 2022

Angélil-Carter S (2014) Stolen language? Plagiarism in writing. Routledge

Book   Google Scholar  

Howard RM (1995) Plagiarisms, authorships, and the academic death penalty. Coll Engl 57(7):788–806

Barrett R, Malcolm J (2006) Embedding plagiarism education in the assessment process. Int J Educ Integr 2(1):38–45

Introna L, Hayes N, Blair L, Wood E (2003) Cultural attitudes towards plagiarism. University of Lancaster, Lancaster, pp 1–57

Neville C (2016) The complete guide to referencing and avoiding plagiarism. McGraw-Hill Education (UK), London, p 43

Campion EW, Anderson KR, Drazen JM (2001) Internet-only publication. N Engl J Med 345(5):365

Li X, Crane N (1996) Electronic styles: a handbook for citing electronic information. Information Today, Inc.

APA (2005) Concise rules of APA style. APA, Washington, DC

Snyder PJ, Peterson A (2002) The referencing of internet web sites in medical and scientific publications. Brain Cogn 50(2):335–337

Article   PubMed   Google Scholar  

Barroga EF (2014) Reference accuracy: authors’, reviewers’, editors’, and publishers’ contributions. J Korean Med Sci 29(12):1587–1589

Standardization IOf (1997) Information and documentation—bibliographic references—part 2: electronic documents or parts thereof, ISO 690-2: 1997. ISO

Download references

Conflict of Interest

None declared.

Author information

Authors and affiliations.

Department of Urology, University of California at San Diego, San Diego, CA, USA

Rohan Reddy, Samuel Sorkhi & Saager Chawla

Department of Urology, University of California and VA San Diego Healthcare System, San Diego, CA, USA

Mahadevan Raj Rajasekaran

You can also search for this author in PubMed   Google Scholar

Corresponding author

Correspondence to Mahadevan Raj Rajasekaran .

Editor information

Editors and affiliations.

Retired Senior Expert Pharmacologist at the Office of Cardiology, Hematology, Endocrinology, and Nephrology, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA

Gowraganahalli Jagadeesh

Professor & Director, Research Training and Publications, The Office of Research and Development, Periyar Maniammai Institute of Science & Technology (Deemed to be University), Vallam, Tamil Nadu, India

Pitchai Balakumar

Division Cardiology & Nephrology, Office of Cardiology, Hematology, Endocrinology and Nephrology, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA

Fortunato Senatore

Rights and permissions

Reprints and permissions

Copyright information

© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

About this chapter

Reddy, R., Sorkhi, S., Chawla, S., Rajasekaran, M.R. (2023). How to Create a Bibliography. In: Jagadeesh, G., Balakumar, P., Senatore, F. (eds) The Quintessence of Basic and Clinical Research and Scientific Publishing. Springer, Singapore. https://doi.org/10.1007/978-981-99-1284-1_39

Download citation

DOI : https://doi.org/10.1007/978-981-99-1284-1_39

Published : 01 October 2023

Publisher Name : Springer, Singapore

Print ISBN : 978-981-99-1283-4

Online ISBN : 978-981-99-1284-1

eBook Packages : Biomedical and Life Sciences Biomedical and Life Sciences (R0)

Share this chapter

Anyone you share the following link with will be able to read this content:

Sorry, a shareable link is not currently available for this article.

Provided by the Springer Nature SharedIt content-sharing initiative

• Publish with us

Policies and ethics

• Find a journal
• Track your research

Have a language expert improve your writing

Run a free plagiarism check in 10 minutes, automatically generate references for free.

• Knowledge Base
• Referencing
• Harvard Style Bibliography | Format & Examples

Harvard Style Bibliography | Format & Examples

Published on 1 May 2020 by Jack Caulfield . Revised on 7 November 2022.

In Harvard style , the bibliography or reference list provides full references for the sources you used in your writing.

• A reference list consists of entries corresponding to your in-text citations .
• A bibliography sometimes also lists sources that you consulted for background research, but did not cite in your text.

The two terms are sometimes used interchangeably. If in doubt about which to include, check with your instructor or department.

The information you include in a reference varies depending on the type of source, but it usually includes the author, date, and title of the work, followed by details of where it was published. You can automatically generate accurate references using our free reference generator:

Harvard Reference Generator

Instantly correct all language mistakes in your text

Be assured that you'll submit flawless writing. Upload your document to correct all your mistakes.

Table of contents

Formatting a harvard style bibliography, harvard reference examples, referencing sources with multiple authors, referencing sources with missing information, frequently asked questions about harvard bibliographies.

Sources are alphabetised by author last name. The heading ‘Reference list’ or ‘Bibliography’ appears at the top.

Each new source appears on a new line, and when an entry for a single source extends onto a second line, a hanging indent is used:

Prevent plagiarism, run a free check.

Reference list or bibliography entries always start with the author’s last name and initial, the publication date and the title of the source. The other information required varies depending on the source type. Formats and examples for the most common source types are given below.

• Entire book
• Book chapter
• Translated book
• Edition of a book

Journal articles

• Print journal
• Online-only journal with DOI
• Online-only journal without DOI
• General web page
• Online article or blog
• Social media post

Newspapers and magazines

• Newspaper article
• Magazine article

When a source has up to three authors, list all of them in the order their names appear on the source. If there are four or more, give only the first name followed by ‘ et al. ’:

Sometimes a source won’t list all the information you need for your reference. Here’s what to do when you don’t know the publication date or author of a source.

Some online sources, as well as historical documents, may lack a clear publication date. In these cases, you can replace the date in the reference list entry with the words ‘no date’. With online sources, you still include an access date at the end:

When a source doesn’t list an author, you can often list a corporate source as an author instead, as with ‘Scribbr’ in the above example. When that’s not possible, begin the entry with the title instead of the author:

Though the terms are sometimes used interchangeably, there is a difference in meaning:

• A reference list only includes sources cited in the text – every entry corresponds to an in-text citation .
• A bibliography also includes other sources which were consulted during the research but not cited.

In Harvard referencing, up to three author names are included in an in-text citation or reference list entry. When there are four or more authors, include only the first, followed by ‘ et al. ’

In Harvard style referencing , to distinguish between two sources by the same author that were published in the same year, you add a different letter after the year for each source:

• (Smith, 2019a)
• (Smith, 2019b)

Add ‘a’ to the first one you cite, ‘b’ to the second, and so on. Do the same in your bibliography or reference list .

To create a hanging indent for your bibliography or reference list :

• Highlight all the entries
• Click on the arrow in the bottom-right corner of the ‘Paragraph’ tab in the top menu.
• In the pop-up window, under ‘Special’ in the ‘Indentation’ section, use the drop-down menu to select ‘Hanging’.
• Then close the window with ‘OK’.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the ‘Cite this Scribbr article’ button to automatically add the citation to our free Reference Generator.

Caulfield, J. (2022, November 07). Harvard Style Bibliography | Format & Examples. Scribbr. Retrieved 8 April 2024, from https://www.scribbr.co.uk/referencing/harvard-bibliography/

Is this article helpful?

Jack Caulfield

Other students also liked, a quick guide to harvard referencing | citation examples, harvard in-text citation | a complete guide & examples, referencing books in harvard style | templates & examples, scribbr apa citation checker.

An innovative new tool that checks your APA citations with AI software. Say goodbye to inaccurate citations!

How to Write a Research Paper: Annotated Bibliography

• Anatomy of a Research Paper
• Developing a Research Focus
• Background Research Tips
• Searching Tips
• Scholarly Journals vs. Popular Journals
• Thesis Statement
• Annotated Bibliography
• Citing Sources
• Evaluating Sources
• Literature Review
• Academic Integrity
• Scholarship as Conversation
• Understanding Fake News
• Data, Information, Knowledge

What is an Annotated Bibliography?

UMary Writing Center

Check out the resources available from the  Writing Center . 

Write an Annotated Bibliography

What is an annotated bibliography?

It is a list of citations for various books, articles, and other sources on a topic. 

An annotation is a short summary and/or critical evaluation of a source.

Annotated bibliographies answer the question: "What would be the most relevant, most useful, or most up-to-date sources for this topic?"

 Annotated bibliographies can be part of a larger research project, or can be a stand-alone report in itself. 

Annotation versus abstracts 

An abstract is a paragraph at the beginning of the paper that discusses the main point of the original work. They typically do not include evaluation comments. 

Annotations can either be descriptive or evaluative. The annotated bibliography looks like a works cited page but includes an annotation after each source cited. 

Types of Annotations: 

Descriptive Annotations: Focuses on description. Describes the source by answering the following questions. 

Who wrote the document?

What does the document discuss?

When and where was the document written? 

Why was the document produced?

How was it provided to the public?

Evaluative Annotations: Focuses on description and evaluation. Includes a summary and critically assess the work for accuracy, relevance, and quality. 

Evaluative annotations help you learn about your topic, develop a thesis statement, decide if a specific source will be useful for your assignment, and determine if there is enough valid information available to complete your project.

What does the annotation include?

Depending on your assignment and style guide, annotations may include some or all of the following information. 

• Should be no more than 150 words or 4 to 6 sentences long. 
• What is the main focus or purpose of the work?
• Who is the intended audience?
• ​How useful or relevant was the article to your topic?
• Was there any unique features that useful to you?
• What is the background and credibility of the author?
• What are any conclusions or observations that your reached about the article?

Which citation style to use?

There are many styles manuals with specific instructions on how to format your annotated bibliography. This largely depends on what your instructor prefers or your subject discipline. Check out our citation guides for more information. 

Additional Information

Why doesn't APA have an official APA-approved format for annotated bibliographies?

Always consult your instructor about the format of an annotated bibliography for your class assignments. These guides provide you with examples of various styles for annotated bibliographies and they may not be in the format required by your instructor. 

Citation Examples and Annotations

Book Citation with Descriptive Annotation

Liroff, R. A., & G. G. Davis. (1981). Protecting open space: Land use control in the Adirondack Park. Cambridge, MA: Ballinger.

This book describes the implementation of regional planning and land use regulation in the Adirondack Park in upstate New York. The authors provide program evaluations of the Adirondack Park Agency’s regulatory and local planning assistance programs.

Journal Article Citation with Evaluative Annotation

Gottlieb, P. D. (1995). The “golden egg” as a natural resource: Toward a normative theory of growth management. Society and Natural Resources, 8, (5): 49-56.

This article explains the dilemma faced by North American suburbs, which demand both preservation of local amenities (to protect quality of life) and physical development (to expand the tax base). Growth management has been proposed as a policy solution to this dilemma. An analogy is made between this approach and resource economics. The author concludes that the growth management debate raises legitimate issues of sustainability and efficiency.

Examples were taken from http://lib.calpoly.edu/support/how-to/write-an-annotated-bibliography/#samples

Book Citation

Lee, Seok-hoon, Yong-pil Kim, Nigel Hemmington, and Deok-kyun Yun. “Competitive Service Quality Improvement (CSQI): A Case Study in the Fast-Food Industry.” Food Service Technology 4 (2004): 75-84.

In this highly technical paper, three industrial engineering professors in Korea and one services management professor in the UK discuss the mathematical limitations of the popular SERVQUAL scales. Significantly, they also aim to measure service quality in the fast-food industry, a neglected area of study. Unfortunately, the paper’s sophisticated analytical methods make it inaccessible to all but the most expert of researchers.

Battle, Ken. “Child Poverty: The Evolution and Impact of Child Benefits.”  A Question of Commitment: Children's Rights in Canada . Ed. Katherine Covell and R.Brian Howe. Waterloo, ON: Wilfrid Laurier University Press. 2007. 21-44.

             Ken Battle draws on a close study of government documents, as well as his own research as an extensively-published policy analyst, to explain Canadian child benefit programs.  He outlines some fundamental assumptions supporting the belief that all society members should contribute to the upbringing of children.  His comparison of child poverty rates in a number of countries is a useful wake-up to anyone assuming Canadian society is doing a good job of protecting children.  Battle pays particular attention to the National Child Benefit (NCB), arguing that it did not deserve to be criticized by politicians and journalists.  He outlines the NCB’s development, costs, and benefits, and laments that the Conservative government scaled it back in favour of the inferior Universal Child Care Benefit (UCCB).  However, he relies too heavily on his own work; he is the sole or primary author of almost half the sources in his bibliography.  He could make this work stronger by drawing from others' perspectives and analyses.  However, Battle does offer a valuable source for this essay, because the chapter provides a concise overview of government-funded assistance currently available to parents.  This offers context for analyzing the scope and financial reality of child poverty in Canada.

Journal Article Example

  Kerr, Don and Roderic Beaujot. “Child Poverty and Family Structure in Canada, 1981-1997.”  Journal of Comparative Family Studies  34.3 (2003): 321-335.

             Sociology professors Kerr and Beaujot analyze the demographics of impoverished families.  Drawing on data from Canada’s annual Survey of Consumer Finances, the authors consider whether each family had one or two parents, the age of single parents, and the number of children in each household.  They analyze child poverty rates in light of both these demographic factors and larger economic issues.  Kerr and Beaujot use this data to argue that. 

Examples were taken from  http://libguides.enc.edu/writing_basics/ annotatedbib/mla

Check out these resources for more information about Annotated Bibliographies. 

• Purdue Owl- Annotated Bibliographies
• University of North Carolina at Chapel Hill- Annotated Bibliographies
• << Previous: Thesis Statement
• Next: Citing Sources >>
• Last Updated: Apr 4, 2024 5:51 PM
• URL: https://libguide.umary.edu/researchpaper

Organizing your research bibliography can be easier than it sounds

The bibliography is a set of studies you should use to make the theoretical basis of your academic paper.

Table of contents

What is a bibliography?

Why do we need to use bibliography in academic research.

• How to compose a bibliography for your paper

Where to search for reliable bibliography?

Scientific websites to find bibliography, format your bibliography in apa style with mettzer.

Do you need to find bibliographies for your academic paper and don’t know how to begin?

Well, then, you have come to the right place 😉

This article will explain to you what a bibliography is and how to find it. In addition we also show you how to format your research bibliography in APA style.

The good news is that you can count on technology tools to help you along the way.

Check it out!

To begin with, the first step is to understand the concept of bibliography.

In general, bibliography is the set of research sources that people should use to develop the theoretical foundation of their academic paper .

You may already know, but the theoretical foundation – which can also be called bibliographic review, theoretical references or literature review – is the review of research and discussions by other authors on a theme.

In other words: it is the contribution of other authors’ theories to your research.

Therefore, the bibliography is the set of these research sources about a particular theme on which the discussion of a new research begins.

So, the bibliography includes the product of research sources, which can be books, scientific journals and scientific papers, for example.

For this reason, the bibliography refers to the list of bibliographical references of an academic paper, which is the identification list of each research source that constitutes your bibliography.

Let me put it this way, the list of bibliographical references is the place where you must identify all the bibliographies you have used, based on elements such as author, title, edition, publisher and date of publication.

But, do you know why is it necessary to organize a bibliography in your academic paper?

Well, the answer is simple. The best way to develop a theoretical basis for your ideas in a paper is to seek references from other researchers who have already written about that subject.

And it all starts with a good literature search. It consists of collecting reliable research sources and analyzing each content.

That is, from writing through renowned theories and scientific research of other people you can show your academic paper has theoretical support.

This is where citations and references come into the picture. After all, to use concepts and theories from other authors, you need to reference them to give due credit. Right?

We call citations the direct or indirect quotes developed along the paper and references the list of research sources that appears at the end of the paper.

Only by using bibliographic references properly can your research be seen as reliable according to scientific standards.

If you don’t do that you are using someone else’s work without giving them proper credit that characterizes plagiarism.

Because of this, bibliography is a mandatory requirement for academic papers.

How to compose a bibliography for your academic paper

Now that you know what a bibliography is and its importance, let’s move to another doubt: how to make the bibliography of a paper?

I tried to systematize it into two main steps to help you in this process.

Let ‘s begin 🙂

Search for the main scientific literature on the theme

The first step is to conduct a literature search. It is from this research that you will collect scientific data necessary to develop your paper.

To begin searching for this literature, you should have already defined your research scope: topic, objectives, methodology and research problem. This scope is the lens through which you will be able to organize your paper and conduct your bibliography research.

After all, before you start searching, you need to know what you are looking for, right? 🙂

You should also look for reliable and relevant research sources.

Build the theoretical framework of your paper

Searching for literature and building a theoretical framework are done almost at the same time. That’s because, as you find research sources about that specific topic, you are also learning about those authors’ theories.

From this, you need to select the theories that will be the basis for your research and discuss them, connecting the bibliography. This process will result in your framework theoretical building.

First of all, to start looking for a bibliography you should have your  research scope defined  – topic, objectives, methodology, and research problem. These elements direct the focus of your research and this is important.

You need to  know what you are looking for  to find the best literature for your paper.

This may sound a bit confusing. But there is an objective way to do it: by defining the keywords of your resesearch.

For example, if your research problem is  how covid-19 pandemic affected Europe , you can start your bibliography research with  ‘pandemic’  and then refine it to literature about ‘ covid-19’  and ‘ Europe context’.

The better your delimitation, the more you will find specific sources on your topic.

Be careful with research sources from the Internet

Direct your search to reputable sites, such as those of educational and research institutions.

Avoid searching on websites with questionable credibility, they may present wrong information. The veracity and quality control of content must be rigorous in scientific research. So, be careful. 

Diversify your research sources

Finding reliable scientific literature requires different sources, such as scientific journals, books, periodicals and academic websites. Some examples of reliable scientific websites are DOAJ, Latindex, Redalyc, Scopus, Ulrichs Web.

Moreover, dissertations and theses can also provide reliable and important contributions on your research topic. You may find them on universities’ websites or libraries.

By bringing all this material together, you will be able to present the core concepts of your research from the perspective of what was already being researched by other authors.

To do your research, especially online, you can start at the following places:

Online libraries

We often forget to use online university libraries, but they are great places to find research sources such as dissertations, theses, and reviews.

Harvard University, for example, has a  digital library  with free and public access to 6 million digitized materials. It’s amazing!

Google Scholar

Imagine a version of Google that only considers results collections of academic journals, professional organizations, university repositories, and other academic institutions.

This is how  Google Scholar  works. That is, there is a filter on the results that only scientific knowledge appears as results.

The website of the publisher Elsevier concentrates the largest database of scientific articles, journals, and books.

In addition,  Scopus  has a search engine with a series of filters that help the student when looking for relevant documents.

Correctly formatting references ensures your paper is respecting academic standards. 

In fact, formatting is not a very simple step. But Mettzer can help you with it 🙂

Mettzer is the first and only digital platform that integrates – in one place the entire cycle of academic work . From planning your research, formatting in APA style to plagiarism checking.

Mettzer’s text editor formats any academic work in APA style . It automatically generates citations and bibliographical references for you.

Besides automatically citations and references, Mettzer’s text editor has a Plagiarism Checker to ensure the originality of your academic works.

You can even start your academic paper from a pre-ready template !

With Mettzer’s technology you save time to focus exclusively on what matters, which is the content of your research.

Check out this powerful tool!

You can take a free trial for 7 days 🙂

Doutoranda em Sociologia pela UFSC. Acredita no poder transformador das trocas e afetos que circulam no ambiente científico. Comprometida com a construção de uma ciência mais plural, humana e socialmente justa.

Deixe um comentário Cancelar resposta

Esse site utiliza o Akismet para reduzir spam. Aprenda como seus dados de comentários são processados .

Teste agora nosso editor que formata trabalhos nas Normas da ABNT e APA

Modelos customizáveis de acordo com sua universidade

Home / Guides / Citation Guides / APA Format / How to Cite a Report in APA

How to Cite a Report in APA

This guide will teach you how to cite a report in APA and create accurate references and text in-citations for various types of reports. That includes citations for  government reports, annual reports, and reports made by both individuals, task forces, and organizations. The content of this guide is based on the 7th edition of the Publication Manual of the American Psychological Association (pp. 329-331).

Are you looking for information on how to cite a different kind of resource? Check out this EasyBib guide on creating an APA citation for a web page , or this one on formatting an APA book citation .

Guide Overview

What is gray literature, when the title doesn’t describe the literature type, when the author and publisher name are the same, how to cite a report from an organization or government agency, how to cite a report with listed author(s), how to cite a report that is part of a series, how to cite a report by a group, task force, or working group, how to cite an annual report, how to cite a press release, what you need.

To begin, let’s take a few moments to define what gray literature is.

Basically, gray literature includes any research or work that was produced by an individual or organization through non-traditional publishing routes.

A report is one example of gray literature. Reports are original research documents that are published by companies, organizations, or working groups that are intended to present the key findings of a specific research project. Since they are not distributed in a traditional way, reports are considered gray literature.

Though gray literature isn’t a traditional source type (like books, journals, newspapers, etc.), there can be a lot of value in gray literature.

Types include

• Annual reports
• Codes of ethics
• Conference proceedings
• Financial health reports
• Government accountability reports
• GrantsPeriodic reports
• Issue briefs
• Policy briefs
• Pharmacological studies
• Press releases
• Technical reports
• Unpublished clinical trials

In some cases, the type of gray literature that you are referencing may not be clear by the title alone, as is sometimes the case with policy briefs and press releases . In these instances, you should include a bracketed description of the gray literature immediately after the title.

Author last name, First initial. Middle initial. (Date published). Title of the work [Work description] (Associated number) . Publisher name. DOI or URL

To see an example of brackets in use, go down to the section on how to cite a press release .

According to the Publication Manual , when the author and publisher are the same, do not add the publisher element (329). To avoid redundancy in these references, you only need to use the name as the author.

Author last name, First initial. Middle initial. (Date published). Title of the work [Work description] (Associated number) . DOI or URL

In this example, the report has been both authored and published by the U.S. Department of the Interior. In cases such as these, provide the name of the organization or agency only once as the author element at the beginning of the reference.

U.S. Department of the Interior. (2016). Agency financial report FY 2016. https://www.doi.gov/sites/doi.gov/files/uploads/doi_fy_2016_afr.pdf

In-text citation example:

• Parenthetical citation: (U.S. Department of the Interior, 2016)
• Narrative citation: U.S. Department of the Interior (2016)

If you’re still a little unsure about how to cite a report, try our EasyBib citation form for reports .

If you are interested in learning more about how to cite gray literature, check out Section 10.4 of the Publication Manual .

Organization or Agency. (Year Published). Title of report or gray literature in sentence case (Associated number). Publisher Name. DOI or URL

U.S. Department of Health and Human Services, National Institutes of Health. (2017). NIH Turning discovery into health. (NIH Publication No. 11-7634). https://www.nih.gov/sites/default/files/about-nih/discovery-into-health/nih-turning-discovery-into-health.pdf

Some government publications will have many departments listed as the author. According to the Publication Manual , you should choose the most detailed department and use that as the in-text citation author (Section 9.11).

• Parenthetical citation: (National Institutes of Health, 2017)
• Narrative citation: National Institutes of Health (2017)

If the report has a specific person or persons listed on the title page, then their names belong in the author position, and the organization belongs in the publisher position.

1st author last name, First initial. Middle initial., & 2nd Author last name, First initial, Middle initial. (Year Published). Title of report in sentence case (Associated number). Publisher Name. DOI or URL

Gerling, M., & Wilson, T. (2019). Evaluating the June area survey’s field enumerator training (RDD-19-01) . U.S. Department of Agriculture, National Agricultural Statistics Service, Research and Development Division. https://www.nass.usda.gov/Education_and_Outreach/Reports,_Presentations_and_Conferences/reports/Evaluating_the_June_Area_Surveys_Field_Enumerator_Training.pdf

For this example, we have chosen a research report which utilizes the U.S. Research and Development Division’s own indexing system (RDD-19-01). If the report is presented with a report number like this, it is included in the reference within parentheses right after the title.

In addition, there are multiple government agencies responsible for the report in addition to the individual authors. In this case, the agencies are all included in the publisher position and separated by a comma.

In-text citation:

• Parenthetical citation : (Gerling & Wilson, 2019)
• Narrative citation : Gerling & Wilson (2019)

Here’s one more example reference:

Gorbunova, Y. (2013). Laws of attrition: Crackdown on Russia’s civil society after Putin’s return to the presidency . Human Rights Watch. https://www.hrw.org/report/2013/04/24/laws-attrition/crackdown-russias-civil-society-after-putins-return-presidency#page

Note: Since no report number was identified, it was not included in the citation.

Author last name, First initial. Middle initial., & Author 2 last name, First initial, Middle initial. (Year published). Title of report in sentence case (Series Name, Series Number). Publisher Name. DOI or URL

Robson, S.G., Heiny, J.S., Arnold, L.R. (2000). Geohydrology of the shallow aquifers in the Boulder-Longmont area, Colorado (Hydrologic Atlas, 746). https://doi.org/10.3133/ha746D

• Parenthetical citation : (Robson et al., 2000)
• Narrative citation : Robson et al. (2000)

Name of Group. (Year Published). Title of report in sentence case (Associated number) . Publisher Name. DOI or URL

International Space Station Independent Safety Task Force. (2007). Final report. National Aeronautics and Space Administration. https://www.nasa.gov/pdf/170368main_IIST_%20Final%20Report.pdf

• Parenthetical citation: (International Space Station Independent Safety Task Force, 2007)
• Narrative citation: International Space Station Independent Safety Task Force (2007)

Name of Organization or Company. (Year Published). Title of report in sentence case. URL

Yum! Brands. (2019). 2018 Annual Report. https://www.annualreports.com/HostedData/AnnualReports/PDF/NYSE_YUM_2018.pdf

Since annual reports are almost always published by the companies or organizations that commissioned them, the author and publisher name would be the same in a reference. To avoid this duplication, the organization name only needs to be listed once as the author; the publisher element can be left out.

• Parenthetical citation : (Yum! Brands, 2019)
• Narrative citation : Yum! Brands (2019)

Author Last Name, First Initial. Middle Initial. (Date published). Title of the work [Work description] (Associated number) . Publisher Name. DOI or URL

Chegg. (2019, June 6). Chegg reveals first of its kind equity plan to help its US employees pay off their student debt. https://investor.chegg.com/Press-Releases/press-release-details/2019/Chegg-reveals-first-of-its-kind-equity-plan-to-help-its-US-employees-pay-off-their-student-debt/default.aspx

• Parenthetical citation : (Chegg, 2019)
• Narrative citation : Chegg (2019)

A reference entry for a report, and other gray literature, will contain the the following source details:

• Author name
• Date published. Either year (2020) or year, month day (2020, February 14)
• Title of the work (in sentence case)
• Associated number (if applicable). Examples: Report No. 22, Project No. 567, Issue 101, etc.
• Work description (if needed). Examples: [Grant], [Policy brief], [Press release]
• Publisher name
• DOI or URL (if applicable). DOi would be formatted as https://doi.org/xxxx

Here’s a basic structure for citing gray literature:

Author last name, First initial. Middle initial. (Date published). Title of the work (Associated number) . Publisher Name. DOI or URL

American Psychological Association. (2020a). Publication manual of the American Psychological Association (7th ed.). https://doi.org/10.1037/0000165-000

American Psychological Association. (2020b). Style-Grammar-Guidelines. https://apastyle.apa.org/style-grammar-guidelines/citations/basic-principles/parenthetical-versus-narrative

Published August 10, 2012. Updated March 24, 2020.

Written and edited by Michele Kirschenbaum and Elise Barbeau. Michele Kirschenbaum is a school library media specialist and the in-house librarian at EasyBib.com. Elise Barbeau is the Citation Specialist at Chegg. She has worked in digital marketing, libraries, and publishing.

APA Formatting Guide

APA Formatting

• Annotated Bibliography
• Block Quotes
• et al Usage
• In-text Citations
• Multiple Authors
• Paraphrasing
• Page Numbers
• Parenthetical Citations
• Reference Page
• Sample Paper
• APA 7 Updates
• View APA Guide

Citation Examples

• Book Chapter
• Journal Article
• Magazine Article
• Newspaper Article
• Website (no author)
• View all APA Examples

How useful was this post?

Click on a star to rate it!

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?

To cite a report in APA style, you need to have basic information including the name of the author/organization, publication year, title of the report, publisher, and/or URL. The templates for in-text citations and reference list entries for a report, along with examples, are given below.

In-text citation template and example:

Author Surname/Organization name (Publication Year)

Logan and Stults (2011)

Parenthetical:

(Author Surname/Organization name, Publication Year)

(Logan & Stults, 2011)

Reference list entry template and example:

Author or organization. (Year of publication). Title of the report (Report No. if applicable). Publisher. URL

Logan, J. R., & Stults, B. J. (2011). The persistence of segregation in the metropolis: New findings from the 2010 Census (Census Brief for Project US2010). American Communities Project, Brown University. www.s4.brown.edu/us2010/Data/Report/report2.pdf

The report title should be in sentence case and italics.

To cite a source with no title in APA style, it is important that you know some basic information such as the name of the author, date if possible, and other information depending upon the type of publication, such as journal article, book chapter, or map. The templates and examples for in-text citations and reference list entries for a source with no title are given below.

Author Surname (Publication Year)

Google (n.d.)

(Author Surname, Publication Year)

(Google, n.d.)

Author Surname, F. (Publication Year). [Description of the work]. Source. URL (if applicable)

Google. (n.d.). [Map of Google to travel by road from Chennai to New Delhi, India]. Retrieved August 21, 2021, from https://www.google.com/maps/dir/Chennai,+Tamil+Nadu/New+Delhi,+Delhi/@20.6384587,69.8777929,5z/data=!3m1!4b1!4m13!4m12!1m5!1m1!1s0x3a5265ea4f7d3361:0x6e61a70b6863d433!2m2!1d80.2707184!2d13.0826802!1m5!1m1!1s0x390cfd5b347eb62d:0x52c2b7494e204dce!2m2!1d77.2090212!2d28.6139391

Note that the “retrieved” date should only be included if the source is likely to change or become unavailable. Since the Google map cited in the example entry may be slightly different depending on the day (due to traffic conditions, road closures, etc.), the “retrieved” date is included.

APA Citation Examples

Writing Tools

Citation Generators

Other Citation Styles

Plagiarism Checker

Upload a paper to check for plagiarism against billions of sources and get advanced writing suggestions for clarity and style.

Get Started

• Directories
• What are citations and why should I use them?
• When should I use a citation?
• Why are there so many citation styles?
• Which citation style should I use?
• Chicago Notes Style
• Chicago Author-Date Style
• AMA Style (medicine)
• Bluebook (law)
• Additional Citation Styles
• Built-in Citation Tools
• Quick Citation Generators
• Citation Management Software
• Start Your Research
• Research Guides
• University of Washington Libraries
• Library Guides
• UW Libraries
• Citing Sources

Citing Sources: What are citations and why should I use them?

What is a citation.

Citations are a way of giving credit when certain material in your work came from another source. It also gives your readers the information necessary to find that source again-- it provides an important roadmap to your research process. Whenever you use sources such as books, journals or websites in your research, you must give credit to the original author by citing the source. 

Why do researchers cite?

Scholarship is a conversation  and scholars use citations not only to  give credit  to original creators and thinkers, but also to  add strength and authority  to their own work.  By citing their sources, scholars are  placing their work in a specific context  to show where they “fit” within the larger conversation.  Citations are also a great way to  leave a trail  intended to help others who may want to explore the conversation or use the sources in their own work.

In short, citations

(1) give credit

(2) add strength and authority to your work

(3) place your work in a specific context

(4) leave a trail for other scholars

"Good citations should reveal your sources, not conceal them. They should honeslty reflect the research you conducted." (Lipson 4)

Lipson, Charles. "Why Cite?"  Cite Right: A Quick Guide to Citation Styles--MLA, APA, Chicago, the Sciences, Professions, and More . Chicago: U of Chicago, 2006. Print.

What does a citation look like?

Different subject disciplines call for citation information to be written in very specific order, capitalization, and punctuation. There are therefore many different style formats. Three popular citation formats are MLA Style (for humanities articles) and APA or Chicago (for social sciences articles).

MLA style (print journal article):  

Whisenant, Warren A. "How Women Have Fared as Interscholastic Athletic Administrators Since the Passage of Title IX." Sex Roles Vol. 49.3 (2003): 179-182.

APA style (print journal article):

Whisenant, W. A. (2003) How Women Have Fared as Interscholastic Athletic Administrators Since the Passage of Title IX. Sex Roles , 49 (3), 179-182.

Chicago style (print journal article):

Whisenant, Warren A. "How Women Have Fared as Interscholastic Athletic Administrators Since the Passage of Title IX." Sex Roles 49, no. 3 (2003): 179-182.

No matter which style you use, all citations require the same basic information:

• Author or Creator
• Container (e.g., Journal or magazine, website, edited book)
• Date of creation or publication
• Publisher 

You are most likely to have easy access to all of your citation information when you find it in the first place. Take note of this information up front, and it will be much easier to cite it effectively later.

• << Previous: Basics of Citing
• Next: When should I use a citation? >>
• Last Updated: Oct 24, 2023 3:46 PM
• URL: https://guides.lib.uw.edu/research/citations

Help | Advanced Search

Quantum Physics

Title: demonstration of logical qubits and repeated error correction with better-than-physical error rates.

Abstract: The promise of quantum computers hinges on the ability to scale to large system sizes, e.g., to run quantum computations consisting of more than 100 million operations fault-tolerantly. This in turn requires suppressing errors to levels inversely proportional to the size of the computation. As a step towards this ambitious goal, we present experiments on a trapped-ion QCCD processor where, through the use of fault-tolerant encoding and error correction, we are able to suppress logical error rates to levels below the physical error rates. In particular, we entangled logical qubits encoded in the [[7,1,3]] code with error rates 9.8 times to 500 times lower than at the physical level, and entangled logical qubits encoded in a [[12,2,4]] code with error rates 4.7 times to 800 times lower than at the physical level, depending on the judicious use of post-selection. Moreover, we demonstrate repeated error correction with the [[12,2,4]] code, with logical error rates below physical circuit baselines corresponding to repeated CNOTs, and show evidence that the error rate per error correction cycle, which consists of over 100 physical CNOTs, approaches the error rate of two physical CNOTs. These results signify an important transition from noisy intermediate scale quantum computing to reliable quantum computing, and demonstrate advanced capabilities toward large-scale fault-tolerant quantum computing.

Submission history

Access paper:.

• HTML (experimental)
• Other Formats

References & Citations

• INSPIRE HEP
• Google Scholar
• Semantic Scholar

1 blog link

Bibtex formatted citation.

Bibliographic and Citation Tools

Code, data and media associated with this article, recommenders and search tools.

• Institution

arXivLabs: experimental projects with community collaborators

arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.

Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them.

Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs .

An official website of the United States government

Here's how you know

Official websites use .gov A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

•   Facebook
•   Twitter
•   Linkedin
•   Digg
•   Reddit
•   Pinterest
•   Email

Latest Earthquakes |    Chat Share Social Media  

Supporting the development and use of native plant materials for restoration on the Colorado Plateau (Fiscal Year 2022 Report)

A primary focus of the Colorado Plateau Native Plant Program (CPNPP) is to identify and develop appropriate native plant materials (NPMs) for current and future restoration projects. Multiple efforts have characterized the myriad challenges inherent in providing appropriate seed resources to enable effective, widespread restoration and have identified a broad suite of research activities to provide the information necessary to overcome those challenges (e.g., Plant Conservation Alliance, 2015; Breed et al., 2018; Winkler et al., 2018; NASEM, 2023). Many of the most complex information needs relate to identifying the appropriate sources of plant species that can successfully establish in dryland environments, like the Colorado Plateau, where low and highly variable precipitation is standard. Providing this information requires synergistic research efforts in which results from earlier investigations inform the design of subsequent investigations. The U.S. Geological Survey (USGS) Southwest Biological Science Center’s (SBSC’s) research activities to support CPNPP in FY22 followed the FY22 Statement of Work to support a research framework that is continually adapting based on the needs of the restoration community and results from previous investigations; the long-term research framework is outlined in the 2019-2023 5-Year Research Strategy (hereafter referred to as the 5-year plan). This research framework provides support for the National Seed Strategy for Rehabilitation and Restoration (Plant Conservation Alliance, 2015), Biden-Harris Administration Executive Order 14008 (Tackling the Climate Crisis at Home and Abroad), and Department of Interior Priority #4 (Working to conserve at least 30% each of our lands and waters by the year 2030). Research activities in FY22 centered on landscape genomics, monitoring common garden and seeding experiments near Vernal and Moab, UT, conducting experimental treatments using the GRID (Germination for Restoration Information and Decision-making) framework, and continuing newer genetics projects to investigate the impact of productions techniques on plant materials and restoration treatments on native plant communities. These activities were supported by two biological science technicians. The effects of the SARS-CoV-2 pandemic were less visible in FY22, allowing SBSC to catch up on backlogged laboratory work. The overall progress of SBSC’s research remains on track with respect to the 5-year plan. While Dr. Rob Massatti was the only scientist supported by the SBSC-CPNPP agreement in FY22, other scientists, including Drs. John Bradford, Seth Munson, Mike Duniway, Sasha Reed, and Daniel Winkler, spent a considerable amount of time providing expertise and support for individual projects. Work activities performed in support of each 5-year plan goal are discussed in turn.

Citation Information

Related content, rob massatti, ph.d., research ecologist, daniel e winkler, ph.d., sasha c reed, ph.d., mike duniway, ph.d., research ecologist & soil scientist, seth munson, ph.d., john b bradford, ph.d., research ecologist, northwest casc.

Read our research on: Gun Policy | International Conflict | Election 2024

Regions & Countries

6 facts about americans and tiktok.

Increasing shares of U.S. adults are turning to the short-form video sharing platform TikTok in general and for news .

Pew Research Center conducted this analysis to better understand Americans’ use and perceptions of TikTok. The data for this analysis comes from several Center surveys conducted in 2023.

More information about the surveys and their methodologies, including the sample sizes and field dates, can be found at the links in the text.

Pew Research Center is a subsidiary of The Pew Charitable Trusts, its primary funder. This is the latest analysis in Pew Research Center’s ongoing investigation of the state of news, information and journalism in the digital age, a research program funded by The Pew Charitable Trusts, with generous support from the John S. and James L. Knight Foundation.

This analysis draws from several Pew Research Center reports on Americans’ use of and attitudes about social media, based on surveys conducted in 2023. For more information, read:

Americans’ Social Media Use

How u.s. adults use tiktok.

• Social Media and News Fact Sheet
• Teens, Social Media and Technology 2023

At the same time, some Americans have concerns about the Chinese-owned platform’s approach to data privacy and its potential impact on national security. Lawmakers in the U.S. House of Representatives recently passed a bill that, if passed in the Senate and signed into law, would restrict TikTok’s ability to operate in the United States.

Here are six key facts about Americans and TikTok, drawn from Pew Research Center surveys.

A third of U.S. adults – including a majority of adults under 30 – use TikTok. Around six-in-ten U.S. adults under 30 (62%) say they use TikTok, compared with 39% of those ages 30 to 49, 24% of those 50 to 64, and 10% of those 65 and older.

In a 2023 Center survey , TikTok stood out from other platforms we asked about for the rapid growth of its user base. Just two years earlier, 21% of U.S. adults used the platform.

A majority of U.S. teens use TikTok. About six-in-ten teens ages 13 to 17 (63%) say they use the platform. More than half of teens (58%) use it daily, including 17% who say they’re on it “almost constantly.”

A higher share of teen girls than teen boys say they use TikTok almost constantly (22% vs. 12%). Hispanic teens also stand out: Around a third (32%) say they’re on TikTok almost constantly, compared with 20% of Black teens and 10% of White teens.

In fall 2023, support for a U.S. TikTok ban had declined. Around four-in-ten Americans (38%) said that they would support the U.S. government banning TikTok, down from 50% in March 2023. A slightly smaller share (27%) said they would oppose a ban, while 35% were not sure. This question was asked before the House of Representatives passed the bill that could ban the app.

Republicans and Republican-leaning independents were far more likely than Democrats and Democratic leaners to support a TikTok ban (50% vs. 29%), but support had declined across both parties since earlier in the year.

Adults under 30 were less likely to support a ban than their older counterparts. About three-in-ten adults under 30 (29%) supported a ban, compared with 36% of those ages 30 to 49, 39% of those ages 50 to 64, and 49% of those ages 65 and older.

In a separate fall 2023 survey, only 18% of U.S. teens said they supported a ban. 

A relatively small share of users produce most of TikTok’s content. About half of U.S. adult TikTok users (52%) have ever posted a video on the platform. In fact, of all the TikTok content posted by American adults, 98% of publicly accessible videos come from the most active 25% of users .

Those who have posted TikTok content are more active on the site overall. These users follow more accounts, have more followers and are more likely to have filled out an account bio.

Although younger U.S. adults are more likely to use TikTok, their posting behaviors don’t look much different from those of older age groups.

About four-in-ten U.S. TikTok users (43%) say they regularly get news there. While news consumption on other social media sites has declined or remained stagnant in recent years, the share of U.S. TikTok users who get news on the site has doubled since 2020, when 22% got news there.

Related: Social Media and News Fact Sheet

TikTok news consumers are especially likely to be:

• Young. The vast majority of U.S. adults who regularly get news on TikTok are under 50: 44% are ages 18 to 29 and 38% are 30 to 49. Just 4% of TikTok news consumers are ages 65 and older.
• Women. A majority of regular TikTok news consumers in the U.S. are women (58%), while 39% are men. These gender differences are similar to those among news consumers on Instagram and Facebook.
• Democrats. Six-in-ten regular news consumers on TikTok are Democrats or Democratic-leaning independents, while a third are Republicans or GOP leaners.
• Hispanic or Black. Three-in-ten regular TikTok news users in the U.S. are Hispanic, while 19% are Black. Both shares are higher than these groups’ share of the adult population. Around four-in-ten (39%) TikTok news consumers are White, although this group makes up 59% of U.S. adults overall .

A majority of Americans (59%) see TikTok as a major or minor threat to U.S. national security, including 29% who see the app as a major threat. Our May 2023 survey also found that opinions vary across several groups:

• About four-in-ten Republicans (41%) see TikTok as a major threat to national security, compared with 19% of Democrats.
• Older adults are more likely to see TikTok as a major threat: 46% of Americans ages 65 and older say this, compared with 13% of those ages 18 to 29.
• U.S. adults who do not use TikTok are far more likely than TikTok users to believe TikTok is a major threat (36% vs. 9%).

Sign up for our weekly newsletter

Fresh data delivered Saturday mornings

WhatsApp and Facebook dominate the social media landscape in middle-income nations

Teens and social media fact sheet, most popular.

About Pew Research Center Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the world. It conducts public opinion polling, demographic research, media content analysis and other empirical social science research. Pew Research Center does not take policy positions. It is a subsidiary of The Pew Charitable Trusts .

Watch CBS News

Why is looking at a solar eclipse dangerous without special glasses? Eye doctors explain.

By Sara Moniuszko

Edited By Allison Elyse Gualtieri

Updated on: April 8, 2024 / 8:54 AM EDT / CBS News

The solar eclipse will be visible for millions of Americans on April 8, 2024, making many excited to see it — but how you watch it matters, since it can be dangerous for your eyes. 

A  solar eclipse occurs when the moon passes between the sun and Earth, blocking the sun's light . When the moon blocks some of the sun, it's a partial solar eclipse, but when moon lines up with the sun, blocking all of its light, a total solar eclipse occurs,  NASA explains . Either way, you need eye protection when viewing.

"The solar eclipse will be beautiful, so I hope that everyone experiences it — but they need to experience it in the right way," said Dr. Jason P. Brinton, an ophthalmologist and medical director at Brinton Vision in St. Louis.

Here's what to know to stay safe.

Why is looking at a solar eclipse dangerous?

Looking at the sun — even when it's partially covered like during an eclipse — can cause eye damage.

There is no safe dose of solar ultraviolet rays or infrared radiation, said  Dr. Yehia Hashad , an ophthalmologist, retinal specialist and the chief medical officer at eye health company Bausch + Lomb.

"A very small dose could cause harm to some people," he said. "That's why we say the partial eclipse could also be damaging. And that's why we protect our eyes with the partial as well as with the full sun."

Some say that during a total eclipse, it's safe to view the brief period time when the moon completely blocks the sun without eye protection. But experts warn against it. 

"Totality of the eclipse lasts only about 1 to 3 minutes based on geographic location, and bright sunlight suddenly can appear as the moon continues to move," notes an eclipse viewing guide published in JAMA , adding, "even a few seconds of viewing the sun during an eclipse" can temporarily or permanently damage your vision. 

Do I need special glasses for eclipse viewing?

Yes.  Eclipse glasses are needed to protect your eyes if you want to look at the eclipse.

Regular sunglasses aren't protective enough for eclipse viewing — even if you stack more than one. 

"There's no amount of sunglasses that people can put on that will make up for the filtering that the ISO standard filters and the eclipse glasses provide," Brinton said.

You also shouldn't look at the eclipse through a camera lens, phone, binoculars or telescope, according to NASA, even while wearing eclipse glasses. The solar rays can burn through the lens and cause serious eye injury.

Eclipse glasses must comply with the  ISO 12312-2 international safety standard , according to NASA, and should have an "ISO" label printed on them to show they comply. The American Astronomical Society  has a list  of approved solar viewers.

Can't find these, or they're sold out near you? You can also  make homemade viewers ,   which allow you to observe the eclipse indirectly — just don't accidentally look at the sun while using one.

How to keep kids safe during the solar eclipse

Since this eclipse is expected to occur around the time of dismissal for many schools across the country, it may be tempting for students to view it without the proper safety precautions while getting to and from their buses. That's why some school districts are  canceling classes early so kids can enjoy the event safely with their families.

Dr. Avnish Deobhakta, vitreoretinal surgeon at New York Eye and Ear Infirmary at Mount Sinai, said parents should also be careful because it can be difficult for children to listen or keep solar eclipse glasses on. 

"You want to actually, in my opinion, kind of avoid them even looking at the eclipse, if possible," he said. "Never look directly at the sun, always wear the right eclipse sunglasses if you are going to look at the sun and make sure that those are coming from a reliable source."

Brinton recommends everyone starts their eclipse "viewing" early, by looking at professional photos and videos of an eclipse online or visiting a local planetarium. 

That way, you "have an idea of what to expect," he said. 

He also recommends the foundation  Prevent Blindness , which has resources for families about eclipse safety.

What happens if you look at a solar eclipse without eclipse glasses?

While your eyes likely won't hurt in the moment if you look at the eclipse without protection, due to lowered brightness and where damage occurs in the eye, beware: The rays can still cause damage .

The harm may not be apparent immediately. Sometimes trouble starts to appear one to a few days following the event. It could affect just one or both eyes.

And while some will regain normal visual function, sometimes the damage is permanent. 

"Often there will be some recovery of the vision in the first few months after it, but sometimes there is no recovery and sometimes there's a degree to which it is permanent," Brinton said. 

How long do you have to look at the eclipse to damage your eyes?

Any amount of time looking at the eclipse without protection is too long, experts say. 

"If someone briefly looks at the eclipse, if it's extremely brief, in some cases there won't be damage. But damage can happen even within a fraction of a second in some cases," Brinton said. He said he's had patients who have suffered from solar retinopathy, the official name for the condition.

Deobhakta treated a patient who watched the 2017 solar eclipse for 20 seconds without proper eye protection. She now has permanent damage in the shape of a crescent that interferes with her vision. 

"The crescent that is burned into the retina, the patient sees as black in her visual field," he said. "The visual deficit that she has will never go away."

How to know if you've damaged your eyes from looking at the eclipse

Signs and symptoms of eye damage following an eclipse viewing include headaches, blurred vision, dark spots, changes to how you see color, lines and shapes. 

Unfortunately, there isn't a treatment for solar retinopathy.

"Seeing an eye care professional to solidify the diagnosis and for education I think is reasonable," Brinton said, but added, "right now there is nothing that we do for this. Just wait and give it time and the body does tend to heal up a measure of it."

Sara Moniuszko is a health and lifestyle reporter at CBSNews.com. Previously, she wrote for USA Today, where she was selected to help launch the newspaper's wellness vertical. She now covers breaking and trending news for CBS News' HealthWatch.

More from CBS News

Look at the solar eclipse too long? Doctors explain signs of eye damage

Is it safe to take pictures of the solar eclipse with your phone?

How to make pinhole cameras to watch the 2024 solar eclipse safely

How often do total solar eclipses happen?

Have a language expert improve your writing

Run a free plagiarism check in 10 minutes, generate accurate citations for free.

• Knowledge Base
• Citing sources

Citation Styles Guide | Examples for All Major Styles

Published on June 24, 2022 by Jack Caulfield . Revised on November 7, 2022.

A citation style is a set of guidelines on how to cite sources in your academic writing . You always need a citation whenever you quote , paraphrase , or summarize a source to avoid plagiarism . How you present these citations depends on the style you follow. Scribbr’s citation generator can help!

Different styles are set by different universities, academic associations, and publishers, often published in an official handbook with in-depth instructions and examples.

There are many different citation styles, but they typically use one of three basic approaches: parenthetical citations , numerical citations, or note citations.

Parenthetical citations

• Chicago (Turabian) author-date

CSE name-year

Numerical citations

CSE citation-name or citation-sequence

Note citations

• Chicago (Turabian) notes and bibliography

Instantly correct all language mistakes in your text

Upload your document to correct all your mistakes in minutes

Table of contents

Types of citation: parenthetical, note, numerical, which citation style should i use, parenthetical citation styles, numerical citation styles, note citation styles, frequently asked questions about citation styles.

The clearest identifying characteristic of any citation style is how the citations in the text are presented. There are three main approaches:

• Parenthetical citations: You include identifying details of the source in parentheses in the text—usually the author’s last name and the publication date, plus a page number if relevant ( author-date ). Sometimes the publication date is omitted ( author-page ).
• Numerical citations: You include a number in brackets or in superscript, which corresponds to an entry in your numbered reference list.
• Note citations: You include a full citation in a footnote or endnote, which is indicated in the text with a superscript number or symbol.

Citation styles also differ in terms of how you format the reference list or bibliography entries themselves (e.g., capitalization, order of information, use of italics). And many style guides also provide guidance on more general issues like text formatting, punctuation, and numbers.

Here's why students love Scribbr's proofreading services

Discover proofreading & editing

In most cases, your university, department, or instructor will tell you which citation style you need to follow in your writing. If you’re not sure, it’s best to consult your institution’s guidelines or ask someone. If you’re submitting to a journal, they will usually require a specific style.

Sometimes, the choice of citation style may be left up to you. In those cases, you can base your decision on which citation styles are commonly used in your field. Try reading other articles from your discipline to see how they cite their sources, or consult the table below.

The American Anthropological Association (AAA) recommends citing your sources using Chicago author-date style . AAA style doesn’t have its own separate rules. This style is used in the field of anthropology.

APA Style is defined by the 7th edition of the Publication Manual of the American Psychological Association . It was designed for use in psychology, but today it’s widely used across various disciplines, especially in the social sciences.

Generate accurate APA citations with Scribbr

The citation style of the American Political Science Association (APSA) is used mainly in the field of political science.

The citation style of the American Sociological Association (ASA) is used primarily in the discipline of sociology.

Chicago author-date

Chicago author-date style is one of the two citation styles presented in the Chicago Manual of Style (17th edition). It’s used mainly in the sciences and social sciences.

The citation style of the Council of Science Editors (CSE) is used in various scientific disciplines. It includes multiple options for citing your sources, including the name-year system.

Harvard style is often used in the field of economics. It is also very widely used across disciplines in UK universities. There are various versions of Harvard style defined by different universities—it’s not a style with one definitive style guide.

Check out Scribbr’s Harvard Reference Generator

MLA style is the official style of the Modern Language Association, defined in the MLA Handbook (9th edition). It’s widely used across various humanities disciplines. Unlike most parenthetical citation styles, it’s author-page rather than author-date.

Generate accurate MLA citations with Scribbr

The American Chemical Society (ACS) provides guidelines for a citation style using numbers in superscript or italics in the text, corresponding to entries in a numbered reference list at the end. It is used in chemistry.

The American Medical Association ( AMA ) provides guidelines for a numerical citation style using superscript numbers in the text, which correspond to entries in a numbered reference list. It is used in the field of medicine.

CSE style includes multiple options for citing your sources, including the citation-name and citation-sequence systems. Your references are listed alphabetically in the citation-name system; in the citation-sequence system, they appear in the order in which you cited them.

The Institute of Electrical and Electronics Engineers ( IEEE ) provides guidelines for citing your sources with IEEE in-text citations that consist of numbers enclosed in brackets, corresponding to entries in a numbered reference list. This style is used in various engineering and IT disciplines.

The National Library of Medicine (NLM) citation style is defined in Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers (2nd edition).

Vancouver style is also used in various medical disciplines. As with Harvard style, a lot of institutions and publications have their own versions of Vancouver—it doesn’t have one fixed style guide.

Scribbr Citation Checker New

The AI-powered Citation Checker helps you avoid common mistakes such as:

• Missing commas and periods
• Incorrect usage of “et al.”
• Ampersands (&) in narrative citations
• Missing reference entries

The Bluebook: A Uniform System of Citation is the main style guide for legal citations in the US. It’s widely used in law, and also when legal materials need to be cited in other disciplines.

Chicago notes and bibliography

Chicago notes and bibliography is one of the two citation styles presented in the Chicago Manual of Style (17th edition). It’s used mainly in the humanities.

The Oxford University Standard for the Citation of Legal Authorities ( OSCOLA ) is the main legal citation style in the UK (similar to Bluebook for the US).

There are many different citation styles used across different academic disciplines, but they fall into three basic approaches to citation:

• Parenthetical citations : Including identifying details of the source in parentheses —usually the author’s last name and the publication date, plus a page number if available ( author-date ). The publication date is occasionally omitted ( author-page ).
• Numerical citations: Including a number in brackets or superscript, corresponding to an entry in your numbered reference list.
• Note citations: Including a full citation in a footnote or endnote , which is indicated in the text with a superscript number or symbol.

Check if your university or course guidelines specify which citation style to use. If the choice is left up to you, consider which style is most commonly used in your field.

• APA Style is the most popular citation style, widely used in the social and behavioral sciences.
• MLA style is the second most popular, used mainly in the humanities.
• Chicago notes and bibliography style is also popular in the humanities, especially history.
• Chicago author-date style tends to be used in the sciences.

Other more specialized styles exist for certain fields, such as Bluebook and OSCOLA for law.

The most important thing is to choose one style and use it consistently throughout your text.

A scientific citation style is a system of source citation that is used in scientific disciplines. Some commonly used scientific citation styles are:

• Chicago author-date , CSE , and Harvard , used across various sciences
• ACS , used in chemistry
• AMA , NLM , and Vancouver , used in medicine and related disciplines
• AAA , APA , and ASA , commonly used in the social sciences

APA format is widely used by professionals, researchers, and students in the social and behavioral sciences, including fields like education, psychology, and business.

Be sure to check the guidelines of your university or the journal you want to be published in to double-check which style you should be using.

MLA Style  is the second most used citation style (after APA ). It is mainly used by students and researchers in humanities fields such as literature, languages, and philosophy.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the “Cite this Scribbr article” button to automatically add the citation to our free Citation Generator.

Caulfield, J. (2022, November 07). Citation Styles Guide | Examples for All Major Styles. Scribbr. Retrieved April 8, 2024, from https://www.scribbr.com/citing-sources/citation-styles/

Is this article helpful?

Jack Caulfield

Other students also liked, apa vs. mla | the key differences in format & citation, the basics of in-text citation | apa & mla examples, how to avoid plagiarism | tips on citing sources, scribbr apa citation checker.

An innovative new tool that checks your APA citations with AI software. Say goodbye to inaccurate citations!

Australian Antarctic Division 'struggling' to use $528 million icebreaker for science voyages, review says

When the RSV Nuyina was first launched in 2021, the state-of-the-art vessel was described as a "Disneyland for scientists".

However, an internal review that the federal government initially refused to release has raised questions about whether Australia's only icebreaker is fulfilling its research capabilities.

In addition to its remit of transporting cargo, fuel and personnel to Antarctic stations, the $528 million ship is supposed to provide 60 days a year of dedicated marine science voyages.

But despite completing multiple resupply missions since coming into service, as well as a rescue operation , the Nuyina has yet to conduct a single expedition focused solely on marine science.

A previously scheduled science voyage to the marginal ice zone was cancelled last year because of delays caused by mechanical problems on the vessel.

It means the first research-focused voyage won't occur until early 2025, when scientists take part in a marine campaign at the Denman Glacier .

The dearth of science-based voyages to date is one of several issues raised in a report the federal environment department declined to release to the ABC.

The report, which was marked as "sensitive", was only made public after Liberal senator Jonathon Duniam successfully moved a motion in the Senate ordering the production of documents.

Prepared by the Department of Finance in February, the report said Australia's reliance on one icebreaker to meet multiple demands is leaving some of the ship's capabilities under-utilised.

"The [Australian Antarctic Division] is struggling to allow sufficient time on the ship to deliver marine science," the report stated.

"This is beginning to (and could continue to) raise concerns within the scientific community."

According to the report, discussions with the government were intended to take place regarding "the suitability of a single vessel operating model for AAD".

"Given Antarctic science is an important benefit that government sought from the investment in the RSV Nuyina, there may be a need to consider whether the single vessel model is going to achieve all that is required from government in the Australian Antarctic Program," it stated.

The report does not include comments about whether a second vessel should be considered to overcome the competing demands.

But Senator Duniam told the ABC alternative options should be on the government's radar.

"If we're serious about being a leader in the region — and the region is not just the Indo-Pacific, but also the Southern Ocean and the Antarctic territories — we need to make sure we do have appropriate resources deployed," he said.

"And if it does mean we need to consider an alternative model to supplement the role of the RSV Nuyina, then we should look to that.

"There are a range of measures that could be deployed, including the chartering of vessels for certain periods of time throughout the calendar year when appropriate."

'Significant impact' if risks transpire

The report is based on a review that examined eight focus areas surrounding the vessel, including governance, risk management and readiness for service.

Overall, the report said it "appears probable" the AAD will be able to realise the Nuyina's anticipated benefits.

However, it flagged several issues that could have significant consequences.

"Remaining questions about the resolution of past propulsion system issues, as well as the incomplete commissioning work (especially in relation to science systems) brings the possibility the vessel is unavailable for key roles," it stated.

The report also suggested the private company contracted to operate the vessel, Serco, could face increased crewing costs, and that "AAD may find itself without an operator for the vessel".

It said the AAD was aware of the issues and had plans in place to respond.

"However, if one or several of these [issues] transpired, they would have a significant impact on the government's ability to achieve the benefits expected from the investment," it said.

The report also flagged "infrastructure gaps" in Hobart and at Antarctic stations that were impacting the efficiency and effectiveness of the use of the ship's capabilities.

One of the gaps relates to the wharf where the Nuyina berths at Hobart's Macquarie Point, which is in need of a significant upgrade.

Another issue is that the ship is unable to refuel in Hobart because, due to safety concerns, it has not been given permission to travel under the Tasman Bridge in order to reach a nearby fuel depot.

It means the Nuyina must travel more than 600 kilometres to Burnie in Tasmania's north-west to refuel , adding almost $1 million to the AAD's annual fuel bill.

The review also noted that the Nuyina was "not well designed to support and re-supply Macquarie Island", where the AAD has a research station.

Work underway to address issues: AAD

The AAD said the Nuyina was one of the most complex scientific icebreakers in the world, and that it would serve Australia's interests for the next three decades.

"Over the past 12 months, RSV Nuyina has supported resupply activities at Australia's research stations including, delivering personnel, cargo and equipment," an AAD spokesperson said.

"The Nuyina has also assisted critical Australian Antarctic Program science activities, including sea floor mapping, the Southern Ocean plankton survey, the deployment of whale and krill monitoring devices and support for the Denman Terrestrial Campaign."

The spokesman also said many of the issues raised in the report were being managed effectively.

"The gateway review found the overall delivery confidence for the project to design and build Nuyina was good," they said.

"It also noted that the AAD has completed work, or has work underway to address all issues."

• X (formerly Twitter)

Related Stories

What should have been a 4km refuelling trip for australia's icebreaker is now a 660km debacle.

Australian Antarctic icebreaker's $875,000 refuelling debacle revealed in a single image

Stressed former Antarctic researcher had 'four cracked molars', quit on advice from her dentist

Authorities deem new icebreaker unsafe to pass under Tasman Bridge, meaning 700km trip to refuel

• Academic Research
• Earth Sciences
• Marine Biology
• Science and Research Management