Cita APA

Fisher, R., Ury, W., & Patton, B. (1991). Getting to yes: Negotiating agreement without giving in (2nd ed.). New York [etc.]: Penguin books.

Citación estilo Chicago

Fisher, Roger, William Ury, and Bruce Patton. Getting to Yes: Negotiating Agreement Without Giving in. 2nd ed. New York [etc.]: Penguin books, 1991.

Cita MLA

Fisher, Roger, William Ury, and Bruce Patton. Getting to Yes: Negotiating Agreement Without Giving in. 2nd ed. New York [etc.]: Penguin books, 1991.