United States. Congress. Senate. Committee on Governmental Affairs & ProQuest (Firm). (1981). Annual report of the postmaster general: Hearing before the Committee on Governmental Affairs, United States Senate, Ninety-seventh Congress, first session, April 22, 1981. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Governmental Affairs and ProQuest (Firm). Annual Report of the Postmaster General: Hearing Before the Committee on Governmental Affairs, United States Senate, Ninety-seventh Congress, First Session, April 22, 1981. Washington: U.S. G.P.O., 1981.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Governmental Affairs and ProQuest (Firm). Annual Report of the Postmaster General: Hearing Before the Committee on Governmental Affairs, United States Senate, Ninety-seventh Congress, First Session, April 22, 1981. U.S. G.P.O., 1981.