United States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Postal Operations & ProQuest (Firm). (1970). Plastic Jungle: Hearings before the United States House Committee on Post Office and Civil Service, Subcommittee on Postal Operations, Ninety-First Congress, first session and Ninety-First Congress, second session, on Oct. 29, Nov. 19, 1969; Jan. 28, Feb. 4, 1970. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Postal Operations and ProQuest (Firm). Plastic Jungle: Hearings Before the United States House Committee on Post Office and Civil Service, Subcommittee on Postal Operations, Ninety-First Congress, First Session and Ninety-First Congress, Second Session, on Oct. 29, Nov. 19, 1969; Jan. 28, Feb. 4, 1970. Washington: U.S. G.P.O., 1970.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Postal Operations and ProQuest (Firm). Plastic Jungle: Hearings Before the United States House Committee on Post Office and Civil Service, Subcommittee on Postal Operations, Ninety-First Congress, First Session and Ninety-First Congress, Second Session, on Oct. 29, Nov. 19, 1969; Jan. 28, Feb. 4, 1970. U.S. G.P.O., 1970.