Fisher, R., Ury, W., & Patton, B. (1981). Getting to yes: Negotiating agreement without giving in. Penguin Books.
Citace podle Chicago (17th ed.)Fisher, Roger, William Ury, a Bruce Patton. Getting to Yes: Negotiating Agreement Without Giving in. Middlesex, England: Penguin Books, 1981.
Citace podle MLA (9th ed.)Fisher, Roger, et al. Getting to Yes: Negotiating Agreement Without Giving in. Penguin Books, 1981.
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