000			00325nam a2200133Ia 4500
100			_aBarnouw, Erik (ed)
020			_a0-19-505804-6
250			_aVol.3
942			_cBK
245			_aInternational encyclopedia of communications
260			_aOxford university press, New York _c1989
082			_aR001.5 Bar
300			_a490
999			_c65503 _d65503