APA (7th ed.) Citation

Amer, M. L. (1991). Black members of the United States Congress, 1789-1991. Congressional Research Service, Library of Congress.

Chicago Style (17th ed.) Citation

Amer, Mildred Lehmann. Black Members of the United States Congress, 1789-1991. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1991.

MLA (9th ed.) Citation

Amer, Mildred Lehmann. Black Members of the United States Congress, 1789-1991. Congressional Research Service, Library of Congress, 1991.