APA (7th ed.) Citation

Copi, I. M., & Cohen, C. (1994). Introduction to logic. [s.n.].

Chicago Style (17th ed.) Citation

Copi, Irving M., and Carl Cohen. Introduction to Logic. Singapore: [s.n.], 1994.

MLA (9th ed.) Citation

Copi, Irving M., and Carl Cohen. Introduction to Logic. [s.n.], 1994.