APA-viite (7. p.)

Copi,Irving M Cohen, & Carl & Rodych,Victor. (2020). Introduction to logic (15.). Routledge.

Chicago-viite (17. p.)

Copi,Irving M Cohen, ja Carl & Rodych,Victor. Introduction to Logic. 15. New York: Routledge, 2020.

MLA-viite (9. p.)

Copi,Irving M Cohen, ja Carl & Rodych,Victor. Introduction to Logic. 15. Routledge, 2020.