APA (7th ed.) Citation

Copi, I. M. (1968). Introduction to logic. The MacMillan Comp.

Chicago Style (17th ed.) Citation

Copi, Irving M. Introduction to Logic. The MacMillan Comp, 1968.

MLA (8th ed.) Citation

Copi, Irving M. Introduction to Logic. The MacMillan Comp, 1968.

Warning: These citations may not always be 100% accurate.