000 00278nam a2200109Ia 4500
008 160710s1950 xx 000 0 und d
100 _aANDREWS,PAUL G.
245 _aSURVEY OF MODERN ELECTRON ICS
260 _aNEW YORK
_bJOHN WILEY &SONS
_c1950
300 _a522
942 _2ddc
_cB
999 _c22427
_d22427