APA-viite (7. p.)

Paul, R., & Elder, L. (2006). Critical Thinking: Learn the tools the best thinkers use. Pearson International.

Chicago-viite (17. p.)

Paul, Richard, ja Linda Elder. Critical Thinking: Learn the Tools the Best Thinkers Use. New Jersey: Pearson International, 2006.

MLA-viite (9. p.)

Paul, Richard, ja Linda Elder. Critical Thinking: Learn the Tools the Best Thinkers Use. Pearson International, 2006.