000 00433nam a22001577a 4500
999 _c2228
_d2228
008 200218b ||||| |||| 00| 0 eng d
082 0 0 _a621.313
_bR6491
100 _91808
_aRobertson, B. L.
245 1 0 _aElectric circuits and machines
_cby B L Robertson
260 _aToronto
_bD. Van Nostrand Company
_c1952
300 _avii,434p.
365 _d23.12
650 0 _aElectric Machinery
700 _91809
_aBlack, L. J.
942 _cBK