000 00310nam a2200133Ia 4500
008 220201s1976 xx 000 0 eng d
082 _a621.37
100 _aGupta, GB
245 0 _aPratyavarti dhara & vidyut mapan
250 _a2nd
260 _bLudhiyana: BD Kataria
_c1976
300 _a184
942 _2ddc
999 _c80762
_d80762