Radio at ultra-high frequencies /   
Technical Papers by RCA Engineers on Propagation, Transmission, Relaying, Measurement, and Reception above 30Mc. 
 - New York, N. Y. :   RCA, Radio Corp. of America, RCA Institute Technical Press,   1940. 
 - 429 p. :   illus.  24 cm. 
<br/><br/> III.RCA Institutes, inc. Technical Press. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>RADIO DE ONDA CORTA
<br/><br/><label>Universal Decimal Class. No.: </label>621.396