Dyfyniad APA
Paul, R., & Elder, L. (2006). Critical thinking: Tools for taking charge of your learning and your life (2nd ed.). Pearson.
Dyfyniad Arddull Chicago
Paul, Richard, and Linda Elder. Critical Thinking: Tools for Taking Charge of Your Learning and Your Life. 2nd ed. Upper Saddle River, New Jersey: Pearson, 2006.
Dyfyniad MLA
Paul, Richard, and Linda Elder. Critical Thinking: Tools for Taking Charge of Your Learning and Your Life. 2nd ed. Pearson, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.