Ury, William. <br/><br/>
Getting past no :  negotiating with difficult people / 
William Ury. 
 - London :  Century Business,  1992. 
 - 161 p. 
<br/><br/>
<br/><br/><label>ISBN: </label>0712655239 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Negotiation.