Fisher, R., & Ury, C. W. (1981). Getting to yes: Negotiating agreement without giving in (ed.). Penguin Books.
Citace podle Chicago (17th ed.)Fisher, Roger, a C. William Ury. Getting to Yes: Negotiating Agreement Without Giving in. ed. New York: Penguin Books, 1981.
Citace podle MLA (9th ed.)Fisher, Roger, a C. William Ury. Getting to Yes: Negotiating Agreement Without Giving in. ed. Penguin Books, 1981.
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