Stumpf, S. E. (1999). Socrates to Sartre: A history of philosophy (6th ed.). McGraw-Hill.
芝加哥风格引文Stumpf, Samuel Enoch. Socrates to Sartre: A History of Philosophy. 6th ed. Boston, Mass: McGraw-Hill, 1999.
MLA引文Stumpf, Samuel Enoch. Socrates to Sartre: A History of Philosophy. 6th ed. McGraw-Hill, 1999.
警告：这些引文格式不一定是100％准确.