000			00320nam a2200133Ia 4500
100			_aBarnouw, Erik
020			_a0-19-505805-4
250			_aVol.4
942			_cBK
245			_aInternational Encyclopedia of Communications
260			_aOxford university press, New York _c1989
082			_aR001.5 Bar
300			_a455
999			_c65136 _d65136