000 00281nam a2200121Ia 4500
100 _aCLAYTON, A.E.
110 _aHANCOCK, N.N.
245 _aPERFORMANCE AND DESIGN OF DIRECT CURRENT MACHINES
250 _aIII
260 _bARNOLD-HEINMAN
_c1978
300 _a516
942 _2ddc
_cB
999 _c42791
_d42791