000 00311nam a2200133Ia 4500
008 220201s1964 xx 000 0 eng d
082 _bDAS
100 _aDas, P. N.
245 0 _aCarrier current engineering
250 _a2
260 _bEnglisher language book society
_c1964
300 _a191
942 _2ddc
999 _c19454
_d19454