The radio amateur's handbook 

 - 28th ed. 
 - USA  American Radio Relay League  1951 
 - 551p.  graphs; index; pictures 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio AmateursV.H.F.
<br/><br/><label>Universal Decimal Class. No.: </label>621.396.6(021)  / ARRL