Cita APA (7th ed.)

Copi Irving M. (2016). Introduction to Logic (14th.). Pearson.

Cita Chicago (17th ed.)

Copi Irving M. Introduction to Logic. 14th. Delhi: Pearson, 2016.

Cita MLA (9th ed.)

Copi Irving M. Introduction to Logic. 14th. Pearson, 2016.