Chaffee, J. (2017). Thinking critically (12th edition.). Cengage Learning.
Citazione stile Chigago Style (17a edizione)Chaffee, John. Thinking Critically. 12th edition. Boston, MA: Cengage Learning, 2017.
Citatione MLA (9a ed.)Chaffee, John. Thinking Critically. 12th edition. Cengage Learning, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.