Copi,Irving M, & Cohen, C. (1990). Introduction to logic. Macmillan.
Chicago Style (17th ed.) CitationCopi,Irving M, and Carl Cohen. Introduction to Logic. Macmillan, 1990.
MLA (8th ed.) CitationCopi,Irving M, and Carl Cohen. Introduction to Logic. Macmillan, 1990.
Warning: These citations may not always be 100% accurate.