Bettinghaus, Erwin P. <br/><br/>
Persuasive communication. 

 - San Francisco :  Rinehart press,   1968. 
 - x, 308 p. 
<br/><br/><label>ISBN: </label>0030665701 
<br/><br/><label>Dewey Class. No.: </label>302.2  / BETT