Lewis, Tom <br/><br/>
Empire of the air  the men who made radio 

 - New York  Harper Collins  1991 
 - 421 p. 
<br/><br/><label>ISBN: </label>0060182156 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics<br/>Radio - United States - Biography<br/>Radio - United States - History
<br/><br/><label>Dewey Class. No.: </label>621.3840973  / L28