APA (7e ed.) Bronvermelding

Copi, I. M., & Cohen, C. (1998). Introduction to logic (Tenth edition.). Prentice Hall.

Chicago (17e ed.) Bronvermelding

Copi, Irving M., en Carl Cohen. Introduction to Logic. Tenth edition. Upper Saddle River, New Jersey: Prentice Hall, 1998.

MLA (9e ed.) Bronvermelding

Copi, Irving M., en Carl Cohen. Introduction to Logic. Tenth edition. Prentice Hall, 1998.