McQuail, Denis. <br/><br/>
Mass communication theory :  an introduction / 
Denis McQuail. 
 - 3rd ed. 
 - London :  Sage ,  1994. 
 - xiv, 416 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0803977859 (pbk. ) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media.