000 00246nam a2200097Ia 4500
008 160710s1957 xx 000 0 und d
100 _aELECTRONICS WORLD
245 _aELECTRICAL WORLD, JAN NO. 3-4
260 _bMC GRAW HILL
_c1957
942 _2ddc
_cB
999 _c40686
_d40686