000 00252nam a2200109Ia 4500
008 160710s1925 xx 000 0 und d
100 _aCRANE,P.H.G.
245 _aSWITCHGEAR PRINCIPLES
260 _bCLEVER-HUME
_c1925
300 _a238
942 _2ddc
_cB
999 _c21566
_d21566