Formatting a Research Paper: APA, MLA, and Chicago Examples
March 30. 2025 0 Comments
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- Writing rules
When writing a research paper, the formatting style you choose plays a vital role in ensuring clarity, organization, and academic credibility. The three most widely used citation styles—APA, MLA, and Chicago—each have their specific rules for font, spacing, page layout, citations, and reference pages. Understanding these formatting guidelines is essential, not only to meet academic standards but also to make your research accessible and professional. In this article, we’ll explore the essential formatting rules for APA, MLA, and Chicago styles, providing a clear, detailed explanation of what each one entails.
APA Style: Common in Social Sciences
APA (American Psychological Association) style is primarily used in the social sciences, such as psychology, sociology, and education. Its focus is on presenting research clearly and consistently, with a special emphasis on the date of publication, which is key in fields where the recency of information is important.
The basic formatting rules for an APA paper include using 12-point Times New Roman or 11-point Arial font and setting 1-inch margins on all sides. Your paper should be double-spaced throughout, including the title page, main body, and reference page.

APA (American Psychological Association) style is commonly used in social sciences like psychology, sociology, and education. Here are the key formatting rules with examples:
- Font: 12-point Times New Roman or 11-point Arial
- Margins: 1-inch on all sides
- Spacing: Double-spaced throughout (including the title page, body, and reference page)
- Title Page:
- Title centered at the top
- Your name and institutional affiliation below
- Optional: Course number or instructor's name
- Running Head: Required for publications (optional for student papers)
- Paragraphs: Indent ½ inch at the beginning
- Headings:Use up to five levels of headings, from most general (Level 1) to most specific (Level 5)
- Citations:
- In-text citations: Author-date format (Author, Year)
- References page: List in alphabetical order with hanging indent
- Follow specific rules for each source type
Writing Example in APA Style:
Title Page
The Impact of Social Media on Adolescent Development
University of Psychology
Professor Smith
March 20, 2025
In-text citation example:
Research indicates that social media can significantly affect adolescent mental health (Smith, 2018).
References Page Example:
Smith, J. (2018). Social Media and Mental Health. Journal of Adolescent Psychology, 32(4), 45-67. https://doi.org/xxxxxxx
MLA Style: Common in Humanities
MLA (Modern Language Association) style is widely used in the humanities, particularly in literature, philosophy, and the arts. The primary focus of MLA style is on authorship and providing a direct link to the source, which makes it easy for readers to locate the materials you’ve cited.
For MLA papers, you’ll follow similar formatting rules to APA, including using 12-point Times New Roman font, double-spacing, and 1-inch margins.
Here’s an example of how the first page of an MLA paper should look:
John Doe
Professor Smith
English 101
April 15, 2025
The Impact of Symbolism in Modern Literature
Each page of your MLA paper should also feature a header that includes your last name and the page number, aligned to the right. For instance, the header on the second page might look like this:
Doe 2
When it comes to citing sources in-text, MLA uses the author-page format. For example, you would cite a source by listing the author's last name and the page number from which the information is drawn, like so:
(Smith 45)
At the end of your paper, you’ll include a Works Cited page that lists all of the sources you referenced in your paper, arranged alphabetically by the author's last name. The entries should have a hanging indent, where the first line of each citation is flush left, and subsequent lines are indented. Here’s an example of a citation for a book:
Smith, John. The Evolution of Modern Thought. Oxford University Press, 2018.
Noting These Requirements
As students prepare for research papers, they often find it helpful to maintain detailed notes to track essential formatting and citation rules for different styles. These notes serve as a crucial reference when writing assignments, ensuring that students adhere to the correct formatting guidelines. For instance, a student working on a literature paper might create a dedicated section in their college notes specifically for MLA formatting. In this section, they would list the core rules, such as the required 12-point Times New Roman font, double-spacing, and 1-inch margins. They would also note the proper way to format in-text citations using the author-page system (e.g., (Smith 45)), along with how to organize the Works Cited page with a hanging indent.
Similarly, a student preparing a paper for psychology or sociology might have a section devoted to APA guidelines, where they would outline the importance of the title page, the use of a running head, and the author-date citation format for in-text references (e.g., (Smith, 2018)).
Bibliography system and the Author-Date system, and the correct format for citing sources in footnotes or endnotes.
For example, notes may include quick bullet points like:
- Font: 12-point Times New Roman
- Spacing: Double-spaced
- Margins: 1-inch
- Title Page: Not required; instead, include a heading with your name, instructor's name, course, and date.
- Header: Include last name and page number on each page.
- Works Cited: Arrange alphabetically with hanging indent.
By organizing their notes in this way, students can quickly reference them when formatting their papers, ensuring they meet all academic standards. Additionally, keeping notes on style variations—such as the author-page citation format used in MLA—helps students avoid mistakes in their citations and maintain consistency throughout their papers. Many students also make a checklist or template in their notes to follow while writing, helping them ensure that they haven’t missed any important formatting elements. These notes serve as a vital resource when drafting and revising their papers, making the process smoother and less time-consuming.
This specific formatting style helps your paper maintain consistency and ensures that your sources are properly credited, allowing readers to find your references with ease.
Chicago Style: Versatile and Detailed
Chicago style is one of the most versatile citation styles, used in various disciplines like history, arts, business, and even some sciences. Chicago offers two citation systems: Notes and Bibliography, often used in the humanities, and Author-Date, which is more common in the sciences. One of the primary differences between Chicago and other styles is that it gives writers the option to choose between footnotes or endnotes (for Notes and Bibliography) or in-text citations (for Author-Date), giving it a more flexible approach.
Chicago Style: Versatile and Detailed
Chicago style is flexible and used across disciplines like history, arts, business, and some sciences. It offers two citation systems: Notes and Bibliography (for humanities) and Author-Date (for sciences). Here are the key formatting rules with examples:
- Font: 12-point Times New Roman
- Margins: 1-inch on all sides
- Spacing: Double-spaced throughout
- Title Page: Optional (if included, title in the center, followed by your name and course/assignment details)
- Page Numbers: Place in top-right or bottom-center
- Citations:
- Notes and Bibliography system: Use footnotes or endnotes with a Bibliography page
- Author-Date system: use parenthetical in-text citations and a References list
Writing Example in Chicago Style (Notes and Bibliography):
Title Page
The Influence of Art in Modern Culture
John Doe
History of Art 101
Professor Smith
March 20, 2025
Footnote Example:
1. John Doe, The Influence of Art in Modern Culture (New York: Oxford University Press, 2025), 42.
Bibliography Example:
Doe, John. The Influence of Art in Modern Culture. New York: Oxford University Press, 2025.
Writing Example in Chicago Style (Author-Date):
In-text citation example:
The role of art in modern culture has evolved significantly over the years (Doe 2025, 42).
References Page Example:
Doe, John. 2025. The Influence of Art in Modern Culture. New York: Oxford University Press.
Key Differences Between APA, MLA, and Chicago Styles
Although APA, MLA, and Chicago share some similarities, they have key differences:
- Title Page:
- APA: Required
- MLA & Chicago: Optional (Chicago allows one if desired)
- Headings:
- APA: Up to five levels of headings
- MLA & Chicago: More flexible
- In-Text Citations:
- APA: Author-date format
- MLA: Author-page format
- Chicago: Author-date or Notes and Bibliography, depending on the citation method chosen
Although the formatting styles share similarities, each has its own distinct features that make it more suited to certain disciplines. APA is most often used in the social sciences and focuses on the author’s name and the publication date of the sources. MLA is widely adopted in the humanities, emphasizing authorship and the location of the source, while Chicago is known for its flexibility, offering two different citation methods that can be tailored to the needs of your paper..
Choosing the Right Style
Selecting the right formatting style for your paper depends largely on your academic field, the type of research you’re conducting, and the guidelines provided by your instructor. Whether you’re using APA, MLA, or Chicago, each style has its strengths and specific rules designed to organize your research in a clear, professional way.
By understanding the key guidelines of each format, you can ensure that your paper meets academic standards and presents your ideas in the most effective manner possible. So, the next time you sit down to write a research paper, make sure you choose the format that best aligns with your subject and follow the corresponding rules closely for a polished and well-organized result.