United States. Congress. Senate. Special Committee to Investigate Air Mail and Ocean Mail Contracts & ProQuest (Firm). (1933). Investigation of Air Mail and Ocean Mail Contracts: Hearings before the United States Senate Special Committee on Investigation of Air Mail and Ocean Mail Contracts, Seventy-Third Congress, second session, on Sept. 26, 27, 29, Oct. 2-6, 1933. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Special Committee to Investigate Air Mail and Ocean Mail Contracts and ProQuest (Firm). Investigation of Air Mail and Ocean Mail Contracts: Hearings Before the United States Senate Special Committee on Investigation of Air Mail and Ocean Mail Contracts, Seventy-Third Congress, Second Session, on Sept. 26, 27, 29, Oct. 2-6, 1933. Washington: U.S. G.P.O., 1933.
MLA (9th ed.) CitationUnited States. Congress. Senate. Special Committee to Investigate Air Mail and Ocean Mail Contracts and ProQuest (Firm). Investigation of Air Mail and Ocean Mail Contracts: Hearings Before the United States Senate Special Committee on Investigation of Air Mail and Ocean Mail Contracts, Seventy-Third Congress, Second Session, on Sept. 26, 27, 29, Oct. 2-6, 1933. U.S. G.P.O., 1933.