Wyckoff, Jerry L., <br/><br/>
From no to yes without bribing or threatening / 
Jerry L. Wyckoff and Barbara C. Unell. 
 - Australia :  Hinkler Books Pty Ltd,  2004. 
 - 237 pages ;  25 cm. 
<br/><br/><label>ISBN: </label>1741218551 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Positive Persuasion Techniques.
<br/><br/><label>Dewey Class. No.: </label>649.64  / W97