United States. Congress. Senate. Committee on Commerce. Aviation Subcommittee & ProQuest (Firm). (1968). Aircraft Noise Abatement Regulation: Hearings before the United States Senate Committee on Commerce, Subcommittee on Aviation, Ninetieth Congress, second session, on June 17, 1968. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Commerce. Aviation Subcommittee and ProQuest (Firm). Aircraft Noise Abatement Regulation: Hearings Before the United States Senate Committee on Commerce, Subcommittee on Aviation, Ninetieth Congress, Second Session, on June 17, 1968. Washington: U.S. G.P.O., 1968.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Commerce. Aviation Subcommittee and ProQuest (Firm). Aircraft Noise Abatement Regulation: Hearings Before the United States Senate Committee on Commerce, Subcommittee on Aviation, Ninetieth Congress, Second Session, on June 17, 1968. U.S. G.P.O., 1968.