Style Guide Showdown: MLA vs. APA vs. Chicago
MLA — humanities, especially language and literature. Emphasizes author-page in-text citations.
APA — social and behavioural sciences. Author-date format; sentence case for titles.
Chicago — publishing, history, and the arts. Offers both notes-bibliography and author-date systems.
They all agree on proper noun capitalization. Where they differ is title case, citations, and number formatting.