Stone, Douglas <br/><br/>
Difficult conversations :  how to discuss what matters most / 
Douglas Stone, Bruce Patton, Sheila Heen 
 - New York :  Penguin Books,  1999       
 - xxi, 250 p. 
<br/><br/><label>ISBN: </label>014028852X 
<br/><br/><label>LC Class. No.: </label>BF 637 S878d 1999