APA (American Psychological Association) style is commonly used in many areas of the social sciences. There are several copies of the printed guide to APA style at the Reference Desk on the 2nd floor of Alden Library (Learning Commons). You can check them out there for use in the library only.Here are several online sources specifically for the APA style:

You can also find many other pointers on APA style in the APA Style Blog.

No style guide can possibly cover all types of sources. This series of narrated slides, from Nova University, gives many examples of what to do in such cases:

Citing Legal Materials in APA: if you are citing the actual, legal document and NOT the website
Document Type Reference List Format Example
Court Case Party v. Party, Legal Citation (Court abbreviation year) Christopher S. v. Stanislaus County Office of Education,384 F.3d 1205 (9th          Cir., 2004)
Statutes Name of law, Pub.L. ##-##, volume Stat. page, codified as amended at title U.S.C. § section #.
Child Abuse Prevention and Treatment Act of 1974,Pub. L. 93-247, 88 Stat.       4, codified as amended at 42 U.S.C. §§5101–5106.
Document Type In-Text Citation Format Example
Court Case (Party v. Party, year) (Griswold v. Connecticut, 1965)
Statutes (Name of Law) (Child Abuse Prevention and Treatment Act of 1974)


You may need to consult several of these sources to find how to cite the source you are working with. If you are doing a large research project you might want to use  Zotero to create and format your list of sources online.