APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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