Mortensen, C. David. <br/><br/>
Communication :  The study of human interaction / 
C. David Mortensen. 
 - New York :  McGraw - Hill,  c1972. 
 - 430 p. 
<br/><br/><label>ISBN: </label>07043395X 
<br/><br/><label>LC Class. No.: </label>HM132  / .M67