Cita APA (7th ed.)

Copi, I. M., McMahon, K., & Cohen, C. (2014). Introduction to logic (14a. ed.). Routledge.

Cita Chicago (17th ed.)

Copi, Irving M., Kenneth McMahon, i Carl Cohen. Introduction to Logic. 14a. ed. Nueva York, United States: Routledge, 2014.

Cita MLA (9th ed.)

Copi, Irving M., et al. Introduction to Logic. 14a. ed. Routledge, 2014.