APA-viite (7. p.)

Copi, I. M., & Cohen, C. (2005). Logic: Language, deduction and induction (12th ed.). Pearson Education South Asia Pte.

Chicago-viite (17. p.)

Copi, Irving M., ja Carl Cohen. Logic: Language, Deduction and Induction. 12th ed. Singapore: Pearson Education South Asia Pte, 2005.

MLA-viite (9. p.)

Copi, Irving M., ja Carl Cohen. Logic: Language, Deduction and Induction. 12th ed. Pearson Education South Asia Pte, 2005.