roger fiser , w. u. (1977). Getting to YES negotiating agreement without giving in. penguin books.
Chicago Style Citationroger fiser , william ury. Getting to YES Negotiating Agreement Without Giving in. penguin books, 1977.
MLA Citationroger fiser , william ury. Getting to YES Negotiating Agreement Without Giving in. penguin books, 1977.
Warning: These citations may not always be 100% accurate.