DeFleur, Melvin L.  1923- <br/><br/>
Understanding mass communication / 
by Melvin L. DeFleur, Everette E. Dennis 
 - Boston :  Houghton Mifflin,  1981 
 - viii, 516 p. :  ill.;  24 cm. 
<br/><br/>Includes bibliographical reference and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media--United States