Dyfyniad APA

Fisher, R. (1991). Getting to Yes (2nd.). Pearson education.

Dyfyniad Arddull Chicago

Fisher, Roger. Getting to Yes. 2nd. New Delhi: Pearson education, 1991.

Dyfyniad MLA

Fisher, Roger. Getting to Yes. 2nd. Pearson education, 1991.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.