The Chicago Manual of Style Online
Also in print: 15th ed. Woodruff Reference Z253 .U69 2003
MLA Handbook for Writers of Research Papers. 7th ed.
Woodruff Reference LB2369 .G53 2009
See the MLA Formatting and Style Guide for some online help.
Publication Manual of the American Psychological Association. 6th ed.
Woodruff Reference BF76.7 .P83 2010
See: APA Formatting and Style Guide for some online help.
Zotero, a Firefox add-on, collects, manages, and cites research sources. Zotero allows you to attach PDFs, notes and images to your citations, organize them into collections for different projects, and create bibliographies using Word or Open Office.
NOTE: MAKE SURE TO CHECK YOUR BIBLIOGRAPHY AFTER FORMATTING WITH ZOTERO!!
EndNote is a program that makes it possible to collect and organize references in a database and instantly create properly formatted bibliographies.