000 00372nam a2200145Ia 4500
008 220201s1948 xx 000 0 eng d
041 _aENG
100 _aBARR, J R
245 0 _aPRINCIPLES OF DIRECT-CURRENT ELECTRICAL ENGG
250 _a2ND
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1948
300 _aX+986
700 _aBALTON, D J
942 _2ddc
999 _c40090
_d40090