000			00447nam a2200109Ia 4500
100			_aCawkell, A.E.
245			_aTelecommunications - where the action is and will be.
260			_c1990
520			_aConsiders the subject at two levels - the technical, and the political and social. Covers topics such as data broadcasting, modems and PABXs, fibreoptics, specialised networks, public networks, standards.
583			_c3/7/00 _kM2LMGR
942			_cA
999			_c20749 _d20749