Betts, J. A. (John Arthur) <br/><br/>
High frequency communications / 
[by] J.A. Betts. 
 - London :  English Universities P.,  [1967] 
 - Introductory science texts .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>67106439 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Shortwave radio.
<br/><br/><label>LC Class. No.: </label>TK6553  / .B42 
<br/><br/><label>Dewey Class. No.: </label>621.3841/51