Davidson, Jeff, <br/><br/>
The Complete Idiot's Guide to Assertiveness : 

 -  Penguin,  1997. 
 - 366 pages 
<br/><br/><label>ISBN: </label>9780028619644 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Self-Help.
<br/><br/><label>Dewey Class. No.: </label>158.2  / DAV