Fisher, R., & Ury,William. (1991). Getting to yes: Negotiating agreement without giving in (2nd ed.). Penguin Books.
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Dyfyniad Arddull Chicago
Fisher, Roger, and Ury,William. Getting to Yes: Negotiating Agreement Without Giving in. 2nd ed. New York: Penguin Books, 1991.
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Dyfyniad MLA
Fisher, Roger, and Ury,William. Getting to Yes: Negotiating Agreement Without Giving in. 2nd ed. Penguin Books, 1991.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.