000 00395cam a2200157ua 4500
003 OSt
008 241223b |||||||| |||| 00| 0 eng d
041 _aeng
082 _a621.3132
_bLAN/PR
100 _aLangsdorf, .
_96549
245 _aPrinciples of direct-current machines /
250 _a6 /
260 _aLondon :
_bMcGraw Hill Book Company ,
_c1964.
300 _a363 ; .
942 _cBK
999 _c4667
_d4667