Evans, Elwyn. <br/><br/>
Radio :  a guide to broadcasting techniques / 
by Elwyn Evans. 
 - London :  Barrie and Jenkins,  c1977. 
 - 174  p. :  ill. 
<br/><br/><label>ISBN: </label>0214203786 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Broadcasting.
<br/><br/><label>LC Class. No.: </label>PN1991.1  / .E35