DU PLOOY, GM <br/><br/>
Communication Research 

 - 2nd Ed. 
 - Cape Town  Juta  2009 
 - 460 pages  24 cm 
<br/><br/><label>ISBN: </label>9780702177101 
<br/><br/><label>Dewey Class. No.: </label>302.2072 COMM