Cox, Jim <br/><br/>
American radio networks : a history 

 - Jefferson, NC:  McFarland & Company,  2009 
 - vii, 228 p. : ill. ; 26 cm 
<br/><br/><label>ISBN: </label>9780786441921 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio broadcasting - United States - History
<br/><br/><label>Dewey Class. No.: </label>384.540973 COX