000 00320pam a2200133a 44500
082 _a621.384151
_bT38r
100 _aThomson, John
245 1 _aRADIO COMMUNICATION AT ULTRA HIGH FREQUENCY
260 _aLondon
_bMethuen
_c1950
300 _a203
650 _aRadio, Short Wave
964 _gCIRC
997 _a3612 s C
999 _c417623
_d417623