Henney, Keith <br/><br/>
Principles of radio 
Keith Henney 
 - 4th. 
 - New York  Wiley  1945 
 - 534 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio.
<br/><br/><label>Dewey Class. No.: </label>621.384