APA (7th ed.) Citation

United States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Postal Rates & ProQuest (Firm). (1970). Postal rates and revenue and cost analysis: Hearings, Ninety-first Congress, second session. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

United States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Postal Rates and ProQuest (Firm). Postal Rates and Revenue and Cost Analysis: Hearings, Ninety-first Congress, Second Session. Washington: U.S. Govt. Print. Off, 1970.

MLA (9th ed.) Citation

United States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Postal Rates and ProQuest (Firm). Postal Rates and Revenue and Cost Analysis: Hearings, Ninety-first Congress, Second Session. U.S. Govt. Print. Off, 1970.