Library of Congress. Congressional Research Service & ProQuest (Firm). (1999). Lobbyists and Interest Groups: A List of Information Sources. [publisher not identified].
Chicago Style (17th ed.) CitationLibrary of Congress. Congressional Research Service and ProQuest (Firm). Lobbyists and Interest Groups: A List of Information Sources. [Place of publication not identified]: [publisher not identified], 1999.
MLA (9th ed.) CitationLibrary of Congress. Congressional Research Service and ProQuest (Firm). Lobbyists and Interest Groups: A List of Information Sources. [publisher not identified], 1999.
Warning: These citations may not always be 100% accurate.