APA (7th ed.) Citation

Amer, M. L. (1993). Members of the U.S. Congress who have served thirty years or more. Congressional Research Service, Library of Congress.

Chicago Style (17th ed.) Citation

Amer, Mildred Lehmann. Members of the U.S. Congress Who Have Served Thirty Years or More. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1993.

MLA (9th ed.) Citation

Amer, Mildred Lehmann. Members of the U.S. Congress Who Have Served Thirty Years or More. Congressional Research Service, Library of Congress, 1993.