Wimmer, Roger D. <br/><br/>
Mass media research :  an introduction / 
Roger D. Wimmer, Joseph R. Dominick. 
 - 3rd ed. 
 - Belmont, Ca. :  Wadsworth Publishing Co.,  1991. 
 - 478 p. :  illustrations ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0534139620  hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media--Research