De Fleur, Melvin Lawrence.  1923- <br/><br/>
Theories of mass communication / 
Melvin L. De Fleur, Sandra Ball-Rokeach. 
 - 3d ed. 
 - New York :  D. McKay Co.,  c1975 [Reprinted 1977]. 
 - xv, 288 p. :  ill. ;  21 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0582280176 067930293X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media--Social aspects.
<br/><br/><label>Dewey Class. No.: </label>302.23  / DET 1977