000 00272nam a2200109Ia 4500
100 _aCLAYTON, A.E.
110 _aHANCOCK, N.N.
245 _aPERFORMANCE AND DESIGN OF DIRECT CURRENT MACHINES
260 _aLONDON
_bSIR ISAAC PITMAN
_c1961
300 _a516
942 _2ddc
_cBB
999 _c71947
_d71947