Dyfyniad APA
Lewicki,Roy J, Litterer,Joseph A, MInton,John W, & Saunders,David M. (1994). Negotiation (2nd ed.). Irwin McGraw Hill.
Dyfyniad Arddull Chicago
Lewicki,Roy J, Litterer,Joseph A, MInton,John W, and Saunders,David M. Negotiation. 2nd ed. Burr Ridge, Ill.: Irwin McGraw Hill, 1994.
Dyfyniad MLA
Lewicki,Roy J, et al. Negotiation. 2nd ed. Irwin McGraw Hill, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.