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Difference Between MLA and APA Format

Explainer4 min·Updated May 2024

What is the difference between MLA and APA format?

The main difference between MLA and APA format is their focus: MLA (Modern Language Association) emphasizes the author and page number, making it ideal for humanities. APA (American Psychological Association) emphasizes the author and date of publication, which is critical for tracking the timeliness of research in the social sciences.

MLA vs. APA: Side-by-Side Comparison

FeatureMLA Format (9th Ed.)APA Format (7th Ed.)
Primary FieldsHumanities, Literature, ArtsSocial Sciences, Education, Nursing
In-Text Citation(Author Page)(Author, Year, p. Page)
Source List NameWorks CitedReferences
Title PageNot required (use header)Required for all papers
Author NamesFull First and Last NameLast Name, First Initial
CapitalizationTitle Case for all titlesSentence Case for titles in references
Date PlacementEnd of citationAfter author name in parentheses

Understanding MLA Format

MLA style is designed for the humanities, where the primary focus is often on the text itself rather than the date it was written. Because literary analysis involves frequent quoting from specific pages of a book or poem, the in-text citation prioritizes the page number. In the Works Cited list, authors are listed by their full names to give credit to the individual creator. Titles of books and articles use title case, meaning every major word is capitalized.

Understanding APA Format

APA style is the standard for scientific and social scientific research. In these fields, the date of a study is vital because older research may be outdated. This is why the publication year appears immediately after the author's name in both in-text citations and the Reference list. APA uses initials for first names to reduce gender bias and employs sentence case for titles in the reference list, meaning only the first word and proper nouns are capitalized.

Examples of In-Text Citations

Example
Notice how the placement of commas and the inclusion of the year changes between the two styles.

**MLA Style (Author Page):**
Historical analysis suggests that the event was inevitable (Smith 42).

**APA Style (Author, Year, Page):**
Historical analysis suggests that the event was inevitable (Smith, 2023, p. 42).

Expert Tip for Choosing a Format

When in doubt, look at your department. If you are writing for an English, Philosophy, or Religion class, use MLA. If you are writing for Psychology, Sociology, Business, or Science, use APA. If your instructor does not specify a style, MLA is often the default for general composition courses.

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MLA, APA, and Chicago citations from any URL or DOI.