Fisher, Roger, 1922-, Getting to yes : negotiating agreement without giving in / [print] by Roger Fisher and William Ury ; with Bruce Patton, editor. - Boston : Houghton Mifflin, (c)1981. - xiii, 163 pages ; 22 cm. LCCN: 81006515 Subjects--Topical Terms: Negotiation. LC Class. No.: BF637.U83.G488 1981