Fisher, Roger, 1922-2012. Getting to yes : negotiating agreement without giving in / Roger Fisher and William Ury ; with Bruce Patton, editor. - Boston : Houghton Mifflin, 1981. - xiii, 163 p. ; 22 cm. ISBN: 0395317576 : $10.95 LCCN: 81006515 Subjects--Topical Terms: Negotiation. LC Class. No.: INU\Bv / F.R.G 1981