000 00302nam a2200121Ia 4500
008 191002s9999 xx 000 0 und d
020 _aSAS0256
100 _aRissik.H
245 0 _aMercury Arc Current Convertors
260 _aLondon
_bPitman publishing
_c1962
536 _aManagement
942 _cSASBKB
999 _c40242
_d40242