United States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Postal Operations and Services & ProQuest (Firm). (1991). Implementation of new first-class mail delivery standards: Hearing before the Subcommittee on Postal Operations and Services of the Committee on Post Office and Civil Service, House of Representatives, One Hundred First Congress, second session, September 27, 1990. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Postal Operations and Services and ProQuest (Firm). Implementation of New First-class Mail Delivery Standards: Hearing Before the Subcommittee on Postal Operations and Services of the Committee on Post Office and Civil Service, House of Representatives, One Hundred First Congress, Second Session, September 27, 1990. Washington: U.S. G.P.O., 1991.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Postal Operations and Services and ProQuest (Firm). Implementation of New First-class Mail Delivery Standards: Hearing Before the Subcommittee on Postal Operations and Services of the Committee on Post Office and Civil Service, House of Representatives, One Hundred First Congress, Second Session, September 27, 1990. U.S. G.P.O., 1991.