From Purdue Online Writing Lab:
APA (American Psychological Association) style is most commonly used to cite sources within the social sciences.
In APA, your citations will be in text in parentheses, and your bibliography will be at the end on a page called References.
From Purdue Online Writing Lab:
MLA (Modern Language Association) style is most commonly used to write papers and cite sources within the liberal arts and humanities.
In MLA, your citations will be in text in parentheses, and your bibliography will be at the end on a page called Works Cited.
From Purdue Online Writing Lab:
CMOS (Chicago Manual of Style) is most commonly used to cite sources within history and the arts.
Chicago has two main options for citations and bibliography: Author Date and Notes Bibliography. In Author Date style, your citations will be in text in parentheses, and your bibliography will be at the end on a page called References. In Notes Bibliography style, your citations will either be footnotes or endnotes, and your bibliography will be at the end on a page called Bibliography.