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.

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Item Link Original Source
Full view   4.En 2/3:102-125 Pennsylvania State University