Citazione Stile APA (7a Edizione)

Copi, I. M., & Cohen, C. (2019). Introduction to Logic (15th.). Routledge.

Citazione stile Chigago Style (17a edizione)

Copi, Irving M., e Carl Cohen. Introduction to Logic. 15th. New York: Routledge, 2019.

Citatione MLA (9a ed.)

Copi, Irving M., e Carl Cohen. Introduction to Logic. 15th. Routledge, 2019.