Cita APA (7a ed.)

Copi, I. M. A concise introduction to logic. Macmillan Company.

Cita Chicago Style (17a ed.)

Copi, Irving M. A Concise Introduction to Logic. New York: Macmillan Company.

Cita MLA (9a ed.)

Copi, Irving M. A Concise Introduction to Logic. Macmillan Company.