000 00291nam a2200121Ia 4500
008 220201s1977 xx 000 0 eng d
082 _a621.385
_bDAS
100 _aDass, P N
245 0 _aCarrier current engineering
260 _aCalcutta
_bBook Agency
_c1977
300 _a199
942 _2ddc
999 _c24349
_d24349