APA (7th ed.) Citation

United States. Congress. Senate. Committee on Post Offices and Post Roads & ProQuest (Firm). (1921). Interstate Highway System: Hearings before the United States Senate Committee on Post Offices and Post Roads, Sixty-Seventh Congress, first session, on May 13, 16-19, 1921. U.S. G.P.O..

Chicago Style (17th ed.) Citation

United States. Congress. Senate. Committee on Post Offices and Post Roads and ProQuest (Firm). Interstate Highway System: Hearings Before the United States Senate Committee on Post Offices and Post Roads, Sixty-Seventh Congress, First Session, on May 13, 16-19, 1921. Washington: U.S. G.P.O., 1921.

MLA (9th ed.) Citation

United States. Congress. Senate. Committee on Post Offices and Post Roads and ProQuest (Firm). Interstate Highway System: Hearings Before the United States Senate Committee on Post Offices and Post Roads, Sixty-Seventh Congress, First Session, on May 13, 16-19, 1921. U.S. G.P.O., 1921.