Dyfyniad APA

Roy Lilley. (2002). Dealing With Difficult People. Kogan Page.

Dyfyniad Arddull Chicago

Roy Lilley. Dealing With Difficult People. New Delhi: Kogan Page, 2002.

Dyfyniad MLA

Roy Lilley. Dealing With Difficult People. Kogan Page, 2002.

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