Citazione Stile APA (7a Edizione)

Copi, I. M., & Cohen, C. (2009). Introduction to Logic: Introduction to Logic (13th ed.). Pearson Education.

Citazione stile Chigago Style (17a edizione)

Copi, Irving M., e Carl Cohen. Introduction to Logic: Introduction to Logic. 13th ed. New Delhi: Pearson Education, 2009.

Citatione MLA (9a ed.)

Copi, Irving M., e Carl Cohen. Introduction to Logic: Introduction to Logic. 13th ed. Pearson Education, 2009.