000 00275nam a2200109Ia 4500
008 160710s1926 xx 000 0 und d
100 _aNILSON ,A.R & HORNUNG ,J.L
245 _aPRACTICAL RADIO COMMUNICATION
260 _bMC GRAW HILL
_c1926
300 _a523
942 _2ddc
_cB
999 _c14216
_d14216