Library of Congress. Congressional Research Service & ProQuest (Firm). (2006). Members Who Have Served in the U.S. Congress 30 Years or More. [publisher not identified].
Chicago Style (17th ed.) CitationLibrary of Congress. Congressional Research Service and ProQuest (Firm). Members Who Have Served in the U.S. Congress 30 Years or More. [Place of publication not identified]: [publisher not identified], 2006.
MLA (9th ed.) CitationLibrary of Congress. Congressional Research Service and ProQuest (Firm). Members Who Have Served in the U.S. Congress 30 Years or More. [publisher not identified], 2006.
Warning: These citations may not always be 100% accurate.