000 00301nam a2200121Ia 4500
008 220201s2011 xx 000 0 eng d
082 _a621.381
_bGUP
100 _aGupta, B R & Singhal V
245 0 _aConsumer Electronics
260 _aDelhi
_bS. K. Kataria Sons
_c2011
300 _a424
942 _2ddc
999 _c29379
_d29379