000 00263nam a2200097Ia 4500
008 160710s1956 xx 000 0 und d
100 _aELECTRONICS WORLD
245 _aELECTRICAL WORLD,AUG.-SEP.,NO.9-10
260 _bMC GRAW-HILL PUBLICATION
_c1956
942 _2ddc
_cB
999 _c40681
_d40681