Stumpf, S. E. (1994). Philosophical problems: Selected readings in Socratic dialogues, ethics, religion, political philosophy, epistemology, and metaphysics (4th ed.). McGraw-Hill.
Citace podle Chicago (17th ed.)Stumpf, Samuel Enoch. Philosophical Problems: Selected Readings in Socratic Dialogues, Ethics, Religion, Political Philosophy, Epistemology, and Metaphysics. 4th ed. New York: McGraw-Hill, 1994.
Citace podle MLA (9th ed.)Stumpf, Samuel Enoch. Philosophical Problems: Selected Readings in Socratic Dialogues, Ethics, Religion, Political Philosophy, Epistemology, and Metaphysics. 4th ed. McGraw-Hill, 1994.
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