Wimmer, Roger D. <br/><br/>
Mass media research :  an introduction / 

 - 3rd ed. 
 - Belmont, Calif. :  Wadsworth Pub. Co.,  c1991. 
 - xv, 478 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0534139620 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media
<br/><br/><label>Dewey Class. No.: </label>302 WAD 1991 A015 Or.