000 00264nam a2200109Ia 4500
008 220201s1955 xx 000 0 eng d
100 _aSiskind,CS
245 0 _aElectricity DC & AC
260 _bLondon: Mc Graw Hill Book & Co
_c1955
300 _a538
942 _2ddc
999 _c70586
_d70586