De Fleur, Melvin L.  1923-,  <br/><br/>
Theories of mass communication / 
Melvin L. DeFleur, Sandra J. Ball-Rokeach. 
 - 4th edition 
 - New York :  Longman,  1982. 
 - 263 pages ;  23 cm. 
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media--Social aspects--History.<br/>Mass media--Social aspects--History.--United States