Citazione Stile APA (7a Edizione)

Copi, I. M. c. (2020). Introduction to Logic (15th.). Routledge.

Citazione stile Chigago Style (17a edizione)

Copi, Irring M; cohen. Introduction to Logic. 15th. New York: Routledge, 2020.

Citatione MLA (9a ed.)

Copi, Irring M; cohen. Introduction to Logic. 15th. Routledge, 2020.