1. Impact Studies in Continuing Education For Health Professionals
2. Changing Physician Performance
3. Aristotle. Ethica Nicomachea, translated by W. D. Ross. In: ed. Great books of the western world: Aristotle II. Chicago: Encyclopaedia Britannica, 1952.
4. The philosophical origins of modern contract doctrine. New York: Oxford University Press, 1991.
5. A theory of cognitive dissonance. Stanford, CA: Stanford University Press, 1957.