Cohen, M. R., Nagel, E., & Corcoran, J. (1993). An introduction to logic (2nd ed.). Hackett.
Chicago Style (17th ed.) CitationCohen, Morris Raphael, Ernest Nagel, and John Corcoran. An Introduction to Logic. 2nd ed. Indianapolis [etc.]: Hackett, 1993.
MLA (9th ed.) CitationCohen, Morris Raphael, et al. An Introduction to Logic. 2nd ed. Hackett, 1993.
Warning: These citations may not always be 100% accurate.