Dyfyniad APA

D'Angelo, R. N., & Douglas, H. (2009). Taking sides (7th edition.). McGraw-Hill Higher Education.

Dyfyniad Arddull Chicago

D'Angelo, Raymond N., and Herbert Douglas. Taking Sides. 7th edition. Boston: McGraw-Hill Higher Education, 2009.

Dyfyniad MLA

D'Angelo, Raymond N., and Herbert Douglas. Taking Sides. 7th edition. McGraw-Hill Higher Education, 2009.

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