000 00269nam a2200133Ia 4500
100 _aGupta/R.G
942 _cBK
654 _aaudio
245 _aAudio and video system
260 _bTata Mc Graw hill
082 _a621.382
_bGUP
300 _a334
546 _aENGLISH
999 _c21255
_d21255