Cita APA (7a ed.)

Copi, I. M. (2019). Introduction to Logic (15th.). Routledge.

Cita Chicago Style (17a ed.)

Copi, Irving M. Introduction to Logic. 15th. Routledge, 2019.

Cita MLA (9a ed.)

Copi, Irving M. Introduction to Logic. 15th. Routledge, 2019.