Dyfyniad APA

Lewicki, R. J. (2007). Essentials of NegotiationRoy J. Lewicki, Bruce Barry and David M. Sauders. McGraw-Hill.

Dyfyniad Arddull Chicago

Lewicki, Roy J. Essentials of NegotiationRoy J. Lewicki, Bruce Barry and David M. Sauders. McGraw-Hill, 2007.

Dyfyniad MLA

Lewicki, Roy J. Essentials of NegotiationRoy J. Lewicki, Bruce Barry and David M. Sauders. McGraw-Hill, 2007.

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