1. Gert, Bernard. 1998. 2005 rev. ed. Morality: Its nature and justification. New York: Oxford University Press.
2. Gert, Bernard. 2002. Replies to my critics. In Rationality, rules, and ideals: Critical essays on Bernard Gert’s moral theory, ed. W. Sinnott-Armstrong and R. Audi, 261–316. Lanham, MD: Rowman and Littlefield.
3. Beauchamp, Tom L. 2003. A defense of the common morality. Kennedy Institute of Ethics Journal 13(3): 259–274.
4. Beauchamp, Tom L., and J.F. Childress. 2001. Principles of biomedical ethics, fifth ed. New York: Oxford University Press.
5. Beauchamp, Tom L. 1998. The mettle of moral fundamentalism: A reply to Robert Baker. Kennedy Institute of Ethics Journal 8(4): 389–401.