Citazione Stile APA (7a Edizione)
Fisher, R., & Ury,William. (1991). Getting to yes: Negotiating agreement without giving in (2nd ed.). Penguin Books.
Citazione stile Chigago Style (17a edizione)
Fisher, Roger, e Ury,William. Getting to Yes: Negotiating Agreement Without Giving in. 2nd ed. New York: Penguin Books, 1991.
Citatione MLA (9a ed.)
Fisher, Roger, e Ury,William. Getting to Yes: Negotiating Agreement Without Giving in. 2nd ed. Penguin Books, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.