Single sideband for the radio amateur 
/ radio amateur's library 
. - 5th ed. 
. - Newington  : The American Radio Relay League, c1970
. - 253 p.  : ill., couv. ill. en coul.  ; 24 cm. 
<br/><br/>Index 
<br/><br/><label>Source: </label> Don 
<br/><br/><label>Universal Decimal Class. No.: </label>621.396.