000 00246nam a2200109Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aGUPTA(J.B)
245 0 _aELECTRICAL
250 _a5
260 _bKATARIA & SONS ( DELHI )
942 _2ddc
_cBTECH
999 _c7732
_d7732