Getting to yes

MLA

Fisher, Roger, William Ury, and Bruce Patton. Getting to Yes : Negotiating Agreement Without Giving In. 3rd ed., rev. ed. New York, NY: Penguin Books, 2011.

APA

Fisher, R., Ury, W., & Patton, B. (2011). Getting to yes : negotiating agreement without giving in. 3rd ed., rev. ed. New York, NY: Penguin Books.

Chicago

Fisher, Roger, William Ury, and Bruce Patton. Getting to Yes: Negotiating Agreement without Giving In. 3rd ed., rev. ed. New York, NY: Penguin Books, 2011.