APA (7th ed.) Citation

Copi, I. M. (1968). Introduction to logic (3rd ed.). Macmillan Company.

Chicago Style (17th ed.) Citation

Copi, Irving M. Introduction to Logic. 3rd ed. New York: Macmillan Company, 1968.

MLA (9th ed.) Citation

Copi, Irving M. Introduction to Logic. 3rd ed. Macmillan Company, 1968.