Telephone network reliability : hearings before the Subcommittee on Telecommunications and Finance of the Committee on Energy and Commerce, House of Representatives, One Hundred Second Congress, including H.R. 4789, a bill to amend the Communications Act of 1934 ... October 1, 1991, April 7 and May 13, 1992.
Coverage: Washington : U.S. G.P.O. : 1992.