(1989). Public policy implications of advanced telecommunication systems: Subcommittee on telecommunications and finance of the committee on energy and commerce. Washington: U.S. Government Printing Office.
استشهاد بنمط شيكاغوPublic Policy Implications of Advanced Telecommunication Systems: Subcommittee On Telecommunications and Finance of the Committee On Energy and Commerce. Washington: U.S. Government Printing Office, 1989.
MLA استشهادPublic Policy Implications of Advanced Telecommunication Systems: Subcommittee On Telecommunications and Finance of the Committee On Energy and Commerce. Washington: U.S. Government Printing Office, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.