000 00304nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a621.3
_bCOT
100 _aH
245 0 _aAdvanced electrical technology
260 _aLondon
_bSir Issac Pitman
_c1967
650 _aElectrical technology
942 _cBK
999 _c24729
_d24729