Wimmer, Roger D. <br/><br/>
Mass media research :   an introduction /  
Roger D. Wimmer, Josep h R. Dominick. 
 - 7th ed. 
 - Belmont, CA :   Thomson/Wadsworth,   c2003. 
 - xii, 488 p. :    ill. ;    25 cm. 
 - Wadsworth series in mass communication and journalism   .
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>0534562744 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass Media --Research.------
<br/><br/><label>Dewey Class. No.: </label>303.23