Dyfyniad APA

McBurney, D. (2001). Research methods (5th ed.). Wadsworth Thomson Learning.

Dyfyniad Arddull Chicago

McBurney, Donald. Research Methods. 5th ed. Belmont, CA: Wadsworth Thomson Learning, 2001.

Dyfyniad MLA

McBurney, Donald. Research Methods. 5th ed. Wadsworth Thomson Learning, 2001.

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