000 00351nam a2200133Ia 4500
008 230118s9999||||xx |||||||||||||| ||und||
082 _a621.8
082 _bCLA/T
100 _aalbert e
_bclayton
245 4 _athe performance and design of direct current machines
260 _alondon
260 _bthe english language book society
260 _c1959
999 _c11635
_d11635