Copi,Irving M Cohen, & Carl & Rodych,Victor. (2020). Introduction to logic (15.). Routledge.
芝加哥风格引文Copi,Irving M Cohen, 与 Carl & Rodych,Victor. Introduction to Logic. 15. New York: Routledge, 2020.
MLA引文Copi,Irving M Cohen, 与 Carl & Rodych,Victor. Introduction to Logic. 15. Routledge, 2020.
警告：这些引文格式不一定是100％准确.