(1989). Hearings before the subcommittee on telecommunications and fiaance of the committee on energy and commerce house of representatives one hundredth congress. Washington: U.S. Government Printing Office.
Παραπομπή Chicago StyleHearings Before the Subcommittee On Telecommunications and Fiaance of the Committee On Energy and Commerce House of Representatives One Hundredth Congress. Washington: U.S. Government Printing Office, 1989.
Παραπομπή MLAHearings Before the Subcommittee On Telecommunications and Fiaance of the Committee On Energy and Commerce House of Representatives One Hundredth Congress. Washington: U.S. Government Printing Office, 1989.
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