1. Aiken, W. 1984. "Ethical Issues in Agriculture." In Earthbound, New Introductory Essays in Environmental Ethics. Edited by T. Regan. New York: Random House, 74-288.
2. Aristotle. Nicomachean Ethics. Edited by R. McKeon. Translated by W.D. Ross. New York: Random House, 1941.
3. - Poetics. Edited by R. McKeon. Translated by Ingram Bywater. New York: Random House, 1941.
4. - Rhetoric. Edited by R. McKeon. Translated by W. Rhys Roberts. New York: Random House, 1941.
5. Arras, John. 1997. "Nice Story, But So What." In Stories and Their Limits. Edited by Hilde Lindemann Nelson. New York: Routledge, 65-88.