United States. Congress. Senate. Committee on Commerce. Aviation Subcommittee & ProQuest (Firm). (1972). Transportation of Government traffic by civil air carriers: Hearings before the Subcommittee on Aviation of the Committee on Commerce, United States Senate, Ninety-second Congress, first session, on S. 1821 . U.S. Govt. Print. Off.
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Commerce. Aviation Subcommittee and ProQuest (Firm). Transportation of Government Traffic by Civil Air Carriers: Hearings Before the Subcommittee on Aviation of the Committee on Commerce, United States Senate, Ninety-second Congress, First Session, on S. 1821 . Washington: U.S. Govt. Print. Off, 1972.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Commerce. Aviation Subcommittee and ProQuest (Firm). Transportation of Government Traffic by Civil Air Carriers: Hearings Before the Subcommittee on Aviation of the Committee on Commerce, United States Senate, Ninety-second Congress, First Session, on S. 1821 . U.S. Govt. Print. Off, 1972.