Biagi, Shirley. <br/><br/>
Media/impact :  an introduction to mass media / 
Shirley Biagi. 
 - 4th ed. 
 - Belmont, CA :  Wadsworth Pub. Co.,  1999. 
 - xxvii, 428 p. :  ill. (some col.) ;  29 cm. 
<br/><br/>Includes bibliographical references (p. 405-412) and index. 
<br/><br/><label>ISBN: </label>0534548105  RM245.02 
<br/><br/><label>LCCN: </label>98-022567 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media.