00867nam0-22003011i-450-99000049274040332120071123141731.0000049274FED01000049274(Aleph)000049274FED0100004927420020821d1934----km-y0itay50------baenga-------001yyElements of radio communicationJohn H. Morecroft2nd ed. revised, enlarged and entirely resetNew YorkWiley & sonsLondonChapman & Hall1934286 p.ill.23 cmRadio621.384Morecroft,John H.26679ITUNINARICAUNIMARCBK99000049274040332110 E II 462306DINELDINELElements of radio communication332966UNINA