000 00420pam a2200157a 44500
082 _a621.3132
_bB27p2
100 _aBarr, James Robertson
245 1 _aPRINCIPLES OF DIRECT-CURRENT ELECTRICAL ENGINEERING
260 _aLondon
_bPitman
_c1956
300 _a486
650 _aElectric Engineering
650 _aElectric Machinery -- Direct Current
700 _aBoston, D. J.
964 _gCIRC
997 _a4988 s C
999 _c435315
_d435315