See How to Cite Sources for help in citing print and electronic resources in various bibliographic styles (MLA, APA, Chicago, etc.)
MLA Handbook for Writers of Research Papers
7th ed., New York : Modern Language Association of America, 2009.
Reference Stacks, Main Level, Call Number: LB2369 .G53 2009
ALWAYS check the style manual!! DO NOT rely on other guides!
The MLA guidelines for citing sources changed in April 2009. For an introduction, see Bibliographic Citations Using MLA Style
For an example of a correctly-formatted new MLA style research paper, see Purdue University's MLA Sample Paper.