Fisher, Roger Getting to Yes : Negotiating an Agreement Without Giving In / Roger Fisher, William Ury ; Editor: Bruce Patton - Third Edition, Revised Edition - New York : Penguin Books, 2011. - xxvii, 204 pages : illustrations ; 20 cm. ISBN: 9781847940933 (pbk.) Subjects--Topical Terms: Negotiation. LC Class. No.: BF637.N4