APA (7e ed.) Bronvermelding

Copi, I. M. (1986). Introduction to logic: Introduction to logic (7th ed.). Macmillan.

Chicago (17e ed.) Bronvermelding

Copi, Irving M. Introduction to Logic: Introduction to Logic. 7th ed. New York: Macmillan, 1986.

MLA (9e ed.) Bronvermelding

Copi, Irving M. Introduction to Logic: Introduction to Logic. 7th ed. Macmillan, 1986.