APA (7th ed.) Citation

Amer, M. L. (1997). Black members of the United States Congress, 1789-1997. Congressional Research Service, Library of Congress.

Chicago Style (17th ed.) Citation

Amer, Mildred Lehmann. Black Members of the United States Congress, 1789-1997. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1997.

MLA (9th ed.) Citation

Amer, Mildred Lehmann. Black Members of the United States Congress, 1789-1997. Congressional Research Service, Library of Congress, 1997.