United States. Congress. Senate. Committee on Interstate Commerce & ProQuest (Firm). (1930). Transportation of Persons in Interstate and Foreign Commerce by Motor Carriers: Hearings before the United States Senate Committee on Interstate Commerce, Seventy-First Congress, third session, on Dec. 18, 1930. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Interstate Commerce and ProQuest (Firm). Transportation of Persons in Interstate and Foreign Commerce by Motor Carriers: Hearings Before the United States Senate Committee on Interstate Commerce, Seventy-First Congress, Third Session, on Dec. 18, 1930. Washington: U.S. G.P.O., 1930.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Interstate Commerce and ProQuest (Firm). Transportation of Persons in Interstate and Foreign Commerce by Motor Carriers: Hearings Before the United States Senate Committee on Interstate Commerce, Seventy-First Congress, Third Session, on Dec. 18, 1930. U.S. G.P.O., 1930.