000 00327nam a2200133Ia 4500
001 8392
008 170722s9999 xx 000 0 und d
100 _aWilliams, Frederick
245 _aCommunications revolution /
260 _aSage Pubs :
_c1982.
300 _a292 p.
_c21.5cms
653 _aElectronic Media
942 _cGEN
999 _c101532
_d101532