Fisher, Roger <br/><br/>
Obtenga el si  el arte de negociar sin ceder 
Roger Fisher, William Ury ; editor : Bruce Patton. 
 - 4 impresión. 
 - Mexico  Companía Editorial Continental  1985, 1984. 
 - 166 p.  23 cm. 
<br/><br/> Reprint. Originally published: Boston : Houghton Mifflin, 1981.  Translation of : Getting to yes : negotiating agreement without giving in. 1981. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Negotiation<br/>Negociacion