Summers, Harrison B. <br/><br/>
A thirty-year History of programs carried on national radio networks in the united states 1926-1956 / 
by.Harrison B. Summers. 
 - New York :  Arno press,  c1971. 
 - 228p. 
<br/><br/><label>ISBN: </label>0405035721 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Broadcasting [America]<br/>Radio programme--United States.
<br/><br/><label>LC Class. No.: </label>PN 1991.3  / .U658