Fisher, Roger, <br/><br/>
Getting to yes    negotiating an agreement without giving in / 
Roger Fisher, William Ury ; with Bruce Patton, editor.  
 - 2a ed.  
 - New York   Houghton Mifflin,   c1991. 
 - xix, 200 p. 
<br/><br/><label>ISBN: </label>0395631246 9780395631249 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Negociación en administración.<br/>Negociación.<br/>Negotiation  
<br/><br/><label>LC Class. No.: </label>BF637  / .N4 F571991