000 00322nam a2200133Ia 4500
008 220201s1977 xx 000 0 eng d
082 _a621.3028
_bGUP
100 _aGupta,RB & Sharma,BR
245 0 _aElectrical engineering materials
250 _a1st
260 _bSatya Prakashan
_c1977
300 _a316
942 _2ddc
999 _c80354
_d80354