000 00273nam a2200133Ia 4500
654 _aELEC
100 _aRissik, H.
250 _a2nd Ed.
245 _aMercury-Arc Current Convertors
260 _bPitman
_c1968
082 _bRIS
300 _a434p.
999 _c12887
_d12887
041 _aeng
655 _aD-12
546 _aText in English
300 _c23 cm.