Hopper, Robert <br/><br/>
Communication Concept And Skills 

 -  Harper & Row Pub.  1979 
<br/><br/> XVII, 413 P. : ILL. 23 CM. 
<br/><br/><label>ISBN: </label>60429038 
<br/><br/><label>Dewey Class. No.: </label>302.2 HOP 1979