Additional information on MLA style may be found at these websites:
APA Style, 7th edition
APA Style, 6th edition. Use only if your instructor directs you to do so. Otherwise, use the 7th edition links above.
What's the difference? Some key changes from 6th to 7th edition APA.
The Chicago Manual of Style offers two very different methods of citation:
The Author-Date system (click for examples) is used by those in the physical, natural, and social sciences.Sources are briefly cited in the text, usually in parentheses, by author’s last name and date of publication. The short citations are amplified in a list of references, where full bibliographic information is provided. More info.
The Chicago Manual of Style, 16th edition. Chicago: Chicago University Press, 2010.
(Reference - Walker Library - 1st Floor 029 C43 2010)
Turabian, Kate L. A manual for writers of research papers, theses, and dissertations : Chicago style for students, 8th edition. Chicago: Chicago University Press, 2013.
(Reference - Walker Library - 1st Floor 378.2 T84m 2013)