000 00263nam a2200109Ia 4500
008 160710s1944 xx 000 0 und d
100 _aEMERY,W.L
245 _aULTRA ,HIGH FREQUENCY RADIO ENGINEERING
260 _bMACMILLAN
_c1944
300 _a295
942 _2ddc
_cB
999 _c6088
_d6088