APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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