000 00251nam a2200109Ia 4500
008 220713s9999 xx 000 0 und d
020 _a978182780250
082 _aJNF 621,31 KNAP
100 _aKNAPP, B
245 0 _aSimple electricity
942 _cBK
_w561
_xJohn Tresidder
_y561
_zJohn Tresidder
999 _c707311
_d707310