APA

United States, . (1998). Annual report of the Postmaster General: hearing before the Subcommittee on International Security, Proliferation, and Federal Services of the Committee on Governmental Affairs, United States Senate, One Hundred Fifth Congress, first session, November 3, 1997. Washington: U.S. G.P.O.

Chicago

United States, . 1998. Annual report of the Postmaster General: hearing before the Subcommittee on International Security, Proliferation, and Federal Services of the Committee on Governmental Affairs, United States Senate, One Hundred Fifth Congress, first session, November 3, 1997. Washington: U.S. G.P.O.

Harvard

United States, . (1998). Annual report of the Postmaster General: hearing before the Subcommittee on International Security, Proliferation, and Federal Services of the Committee on Governmental Affairs, United States Senate, One Hundred Fifth Congress, first session, November 3, 1997. Washington: U.S. G.P.O.

MLA

United States, . Annual report of the Postmaster General: hearing before the Subcommittee on International Security, Proliferation, and Federal Services of the Committee on Governmental Affairs, United States Senate, One Hundred Fifth Congress, first session, November 3, 1997. Washington: U.S. G.P.O. 1998.