Cita APA (7a ed.)

Fisher, R., Ury, W., & Patton, B. (1991). Getting to yes: Negotiating agreement without giving in (Second edition.). Penguin Books.

Cita Chicago Style (17a ed.)

Fisher, Roger, William Ury, y Bruce Patton. Getting to Yes: Negotiating Agreement Without Giving in. Second edition. New York, New York: Penguin Books, 1991.

Cita MLA (9a ed.)

Fisher, Roger, et al. Getting to Yes: Negotiating Agreement Without Giving in. Second edition. Penguin Books, 1991.