000			00388nam a2200133Ia 4500
008			200809s9999 xx 000 0 und d
020			_a0074621408
082			_a621.3897 _bGUP-A
100			_aGupta,R G
245			_aAudio and video systems
260			_bTata McGraw-Hill Publishing Company Limited, New Delhi
650			_aAudio,Electronics, communications, sound recording
942			_cBK
999			_c1538 _d1538