Cahn, S. M. (1999). Classics of Western philosophy (5th ed.). Hackett.
芝加哥风格引文Cahn, Steven M. Classics of Western Philosophy. 5th ed. Indianapolis, Ind.: Hackett, 1999.
MLA引文Cahn, Steven M. Classics of Western Philosophy. 5th ed. Hackett, 1999.
警告：这些引文格式不一定是100％准确.