United States. Congress. Senate. Committee on Post Offices and Post Roads & ProQuest (Firm). (1940). Transportation and Distribution of Mails on Motor-Vehicle Routes: Hearings before the United States Senate Committee on Post Offices and Post Roads, Seventy-Sixth Congress, third session, on May 7, 1940. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Post Offices and Post Roads and ProQuest (Firm). Transportation and Distribution of Mails on Motor-Vehicle Routes: Hearings Before the United States Senate Committee on Post Offices and Post Roads, Seventy-Sixth Congress, Third Session, on May 7, 1940. Washington: U.S. G.P.O., 1940.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Post Offices and Post Roads and ProQuest (Firm). Transportation and Distribution of Mails on Motor-Vehicle Routes: Hearings Before the United States Senate Committee on Post Offices and Post Roads, Seventy-Sixth Congress, Third Session, on May 7, 1940. U.S. G.P.O., 1940.