Citazione Stile APA (7a Edizione)

Copi, I. M. A concise introduction to logic. Macmillan Company.

Citazione stile Chigago Style (17a edizione)

Copi, Irving M. A Concise Introduction to Logic. New York: Macmillan Company.

Citatione MLA (9a ed.)

Copi, Irving M. A Concise Introduction to Logic. Macmillan Company.