United States. Congress. House. Committee on Internal Security & ProQuest (Firm). (1972). The theory and practice of communism in 1972: Hearings, Ninety-second Congress, second session. U.S. Govt. Print. Off.
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Internal Security and ProQuest (Firm). The Theory and Practice of Communism in 1972: Hearings, Ninety-second Congress, Second Session. Washington: U.S. Govt. Print. Off, 1972.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Internal Security and ProQuest (Firm). The Theory and Practice of Communism in 1972: Hearings, Ninety-second Congress, Second Session. U.S. Govt. Print. Off, 1972.
Warning: These citations may not always be 100% accurate.