Key readings to media today/  mass communication in contexts 
Duffy,Brooke Erin 
 - 1st ed. 
 - New York:  Routledge,  2009. 
 - 484 p. 
<br/><br/><label>ISBN: </label>9780415992046 
<br/><br/><label>Dewey Class. No.: </label>302.23  / DUF/K