000 00339nam a2200145Ia 4500
008 220709s9999 xx 000 0 und d
082 _a621
_bGUP
100 _aGUPTA R.G.
245 0 _aAUDIO AND VIDEO SYSTEM : PRINCIPLES , MAINTENANCE AND TROUBLESHOOTING
250 _a1
260 _bTMH
300 _a334
942 _cREF
999 _c79488
_d79488