This is from Purdue University's OWL office. It's one of the "go-to" sites for referencing how to write a paper in APA style. Also there is a link to the MLA style to the left under "Suggested Resources" with sample papers, in-text and works cited rules.
Web-based bibliographic citation management tool featuring importing of references from databases and creation of bibliographies in a variety of citation styles. Group Code for our college is RWBronxCommC
The Bluebook by 
A Manual for Writers of Research Papers, Theses, and Dissertations by 
Foundations of Legal Research and Writing by 