Modern Language Association (MLA) -- Basic information "for most students' needs for most academic purposes in the Humanities disciplines."
OWL at Purdue University Using Modern Language Association (MLA) Format -- For research in the humanities, this site provides "a brief summary of MLA style for the research paper."
Chicago Manual of Style Citation Guide -- "Examples are shown for both the newer Scientific style of citation recommended for natural sciences and social sciences, as well as the more traditional Humanities style used for fine arts, literature, etc" (Ohio State University).
Chicago/Turabian Style -- Humanities style; "most commonly thought of as note systems" (University of Wisconsin-Madison).
American Political Science Association (APSA) -- Instructions on parenthetical citations, reference lists, headings, and notes for writers of research papers in political science (University of Wisconsin-Madison).
The Columbia Guide to Online Citations -- Guide to citing electronic sources, not tied to any specific bibliographic style.
