APA (7e ed.) Bronvermelding

Copi, I. M., & Cohen, C. (2019). Introduction to Logic (15th.). Routledge.

Chicago (17e ed.) Bronvermelding

Copi, Irving M., en Carl Cohen. Introduction to Logic. 15th. New York: Routledge, 2019.

MLA (9e ed.) Bronvermelding

Copi, Irving M., en Carl Cohen. Introduction to Logic. 15th. Routledge, 2019.