Dyfyniad APA

Fisher,Roger. (1991). Getting to yes: Negotiating agreement without giving in (NA.). RH Business Books.

Dyfyniad Arddull Chicago

Fisher,Roger. Getting to Yes: Negotiating Agreement Without Giving in. NA. US: RH Business Books, 1991.

Dyfyniad MLA

Fisher,Roger. Getting to Yes: Negotiating Agreement Without Giving in. NA. RH Business Books, 1991.

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