000 003030000a22001450004500
245 _aElectrical technology
100 _aCotton, H.
250 _a7th ed.
260 _aLondon
_bPitman
_c1957
300 _a864 p.
500 _aM.K.S. Units
080 _a621.3
_bC6
041 _aEN
942 _cBK
999 _c52526
_d52526