De Fleur, Melvin Lawrence <br/><br/>
Theories of mass communication 
Melvin L. De Fleur, Sandra Ball-Rokeach. 
 - 5th. ed. 
 - New York  Longman  1989 
 - 368 p. 
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media--Social aspects.