Dyfyniad APA

Hoover, J. (2007). Difficult People. HarperCollins.

Dyfyniad Arddull Chicago

Hoover, John. Difficult People. New York: HarperCollins, 2007.

Dyfyniad MLA

Hoover, John. Difficult People. HarperCollins, 2007.

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