Understanding mass communication /  
Defleur, Melvin L., Dennis, Everette E.  
 - 4th ed.  
 - Boston ... (et al) :   Houghton Mifflin company,  c1991 
 - xiv, 637 p. :   ill. ;   26 cm.   includes references and indexes 
<br/><br/><label>ISBN: </label>0-395-47272-5 
<br/><br/><label>Subjects--Topical Terms: </label>--mass communication
<br/><br/><label>Dewey Class. No.: </label>302.23 DEF