Cita APA (7a ed.)

Fisher, R., & Ury, W. (1991). Getting to yes: Negotiating an agreement without giving in (Completely revised new edition.). Business Books Limited.

Cita Chicago Style (17a ed.)

Fisher, Roger, y William Ury. Getting to Yes: Negotiating an Agreement Without Giving in. Completely revised new edition. London: Business Books Limited, 1991.

Cita MLA (9a ed.)

Fisher, Roger, y William Ury. Getting to Yes: Negotiating an Agreement Without Giving in. Completely revised new edition. Business Books Limited, 1991.