APA (7th ed.) Citation

Library of Congress. Congressional Research Service. (2009). Members who have served in the U.S. Congress for 30 years or more. Congressional Research Service.

Chicago Style (17th ed.) Citation

Library of Congress. Congressional Research Service. Members Who Have Served in the U.S. Congress for 30 Years or More. [Washington, District of Columbia]: Congressional Research Service, 2009.

MLA (8th ed.) Citation

Library of Congress. Congressional Research Service. Members Who Have Served in the U.S. Congress for 30 Years or More. Congressional Research Service, 2009.