United States. Congress. House. Committee on Post Office and Post Roads & ProQuest (Firm). (1939). Motor-Vehicle Routes: Hearings before the United States House Committee on Post Office and Post Roads, Subcommittee on Railway Mail Service, Seventy-Sixth Congress, first session, on May 23, 1939. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Motor-Vehicle Routes: Hearings Before the United States House Committee on Post Office and Post Roads, Subcommittee on Railway Mail Service, Seventy-Sixth Congress, First Session, on May 23, 1939. Washington: U.S. G.P.O., 1939.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Motor-Vehicle Routes: Hearings Before the United States House Committee on Post Office and Post Roads, Subcommittee on Railway Mail Service, Seventy-Sixth Congress, First Session, on May 23, 1939. U.S. G.P.O., 1939.