APA引文
Copi, I. M., & Cohen, C. (2009). Introduction to logic (13th ed.). Pearson/Prentice Hall.
Chicago Style (17th ed.) Citation
Copi, Irving M., and Carl Cohen. Introduction to Logic. 13th ed. Upper Saddle River, N.J.: Pearson/Prentice Hall, 2009.
MLA引文
Copi, Irving M., and Carl Cohen. Introduction to Logic. 13th ed. Pearson/Prentice Hall, 2009.
警告：這些引文格式不一定是100％准確.