Check with your professor about the preferred citation style for your course. 

Below are some of the most common style guides used in the language and literature fields.

MLA Handbook for Writers of Research Papers

Olin Library Reference (Floor 1)

Call number: LB2369 .G53 2003b

Chicago Manual of Style

Olin Library Reference (Floor 1)

Call number: Z253 .U69 2003

Turabian's Manual for Writers of Term Papers, Theses, and Dissertations

Olin Library Reference (Floor 1)

Call number: LB2369 .T8 2007

A somewhat simplified version of the Chicago Manual of Style. Use the volume for full information. Find examples here.