Folkerts, Jean. <br/><br/>
Voices of a nation :  a history of mass media in the United States/ 
Jean Folkerts ; Jean Folkerts, Dwight L. Teeter, Jr.. 
 - 2nd ed. 
 - xviii, 570 sayfa: resimli 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0023386517 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media--United States--History.
<br/><br/><label>LC Class. No.: </label>P92  / .F65 1994