Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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