Dyfyniad APA

Moore, B. N., & Parker, R. (2008). Critical thinking (9th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Moore, Brooke Noel, and Richard Parker. Critical Thinking. 9th ed. Boston: McGraw-Hill, 2008.

Dyfyniad MLA

Moore, Brooke Noel, and Richard Parker. Critical Thinking. 9th ed. McGraw-Hill, 2008.

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