The Bluebook: A Uniform System of Citation. 19th ed. - Ref KF 245.U55 2010  The Authoritative guide for citing legal materials.

The Complete Guide to Citing Government Information Resources: A Manual for Writers and Librarians - Ref Z7164.67 G37

Citing U.S. Government Publications A detailed guide from Indiana University Bloomington

Citing Records in the National Archives of the United States

Here are some guides to citation styles commonly used in African American Studies papers. Ask your professor which style you should use.