Henney, Keith . <br/><br/>
Principles of Radio /  Textual Documents 
Keith Henney. 
 - 5th ed. / 
 - New York :  John Wiley & Sons ,  ©1945. 
 - viii,546p. :  ill ;  22cm . 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Radio G-Technology 
<br/><br/><label>Dewey Class. No.: </label>621.384  / H 392 P