000 00276nam a2200121Ia 4500
100 _aRobertson B L
245 _aElectric Circuits and Machines
250 _a2
260 _c1959
_aNew Jersey
_bD.Van Nostrand Company
300 _avii+456
700 _aBlack L J
942 _cBK
999 _c1676
_d1676