000 00343nam a2200157Ia 4500
082 _a621.381/Gup/Sin
100 _aGupta, B R; Singhal, V
526 _dTB
526 _aPG
366 _f10% And 20%
942 _cBK
245 _aConsumer Electronics
260 _aNew Delhi
_bS.K Kataria & Sons
_c2015
300 _axvi,370
546 _aE
999 _c78059
_d78059