Wimmer, Roger D. <br/><br/>
Mass media research :  an introduction / 
Roger D. Wimmer, Joseph R. Dominick. 
 - 9th ed., international ed. 
 - Australia :  Wadsworth, Cengage Learning,  c2011. 
 - 464 p. :  ill. 
 - Wadsworth series in mass communication and journalism .
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>9781439083925 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media--Research
<br/><br/><label>LC Class. No.: </label>P91.3  / W555M 2011