Citazione Stile APA (7a Edizione)

Copi, I. M., & Cohen, C. (2002). Introduction to logic (Eleventh edition.). Pearson Education, Asia.

Citazione stile Chigago Style (17a edizione)

Copi, Irving M., e Carl Cohen. Introduction to Logic. Eleventh edition. Singapore: Pearson Education, Asia, 2002.

Citatione MLA (9a ed.)

Copi, Irving M., e Carl Cohen. Introduction to Logic. Eleventh edition. Pearson Education, Asia, 2002.