Chaffee, J. (2015). Thinking critically (Eleventh edition.). Cengage Learning.
Citazione stile Chigago Style (17a edizione)Chaffee, John. Thinking Critically. Eleventh edition. Stamford, Connecticut: Cengage Learning, 2015.
Citatione MLA (9a ed.)Chaffee, John. Thinking Critically. Eleventh edition. Cengage Learning, 2015.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.