Fisher, Roger 1922-2012. Getting to yes : negotiating agreement without giving in / by Roger Fisher and William Ury ; with Bruce Patton, editor. - 2nd ed. / by Fisher, Ury, and Patton. - Boston : Houghton Mifflin, c1991. - xix, 200 p. : ill. ; 22 cm. ISBN: 0395631246 : LCCN: 92001139 Subjects--Topical Terms: Negotiation. LC Class. No.: / F57 199 Dewey Class. No.: I5 F536