McQuail, Denis. <br/><br/>
Mass Communication Theory: An Introduction /  

 - 1st ed /  
 - London EC1Y 8QE :   SAGE Publications Ltd. ,   1990 
 - p.246 :  
<br/><br/><label>ISBN: </label>0-8039-9770-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political Science
<br/><br/><label>Dewey Class. No.: </label>W(X3)  / M3