000 00299nam a2200133Ia 4500
008 220901s2013 xx 000 0 eng d
082 _a621.3 GUP
100 _aGupta, J.B
245 0 _aElectrical science
250 _a5
260 _bS.K. Kataria
_c2013
_aDelhi
300 _a569
942 _2ddc
_cBK
_06
999 _c632
_d632