Flanagan, O., Sarkissian, H., & Wong, D. (2007). "What is the Nature of Morality? A Response to Casebeer, Railton, and Ruse". In W. Sinnott-Armstrong (Ed.), *Moral Psychology: The Evolution of Morality* (Vol. 1, pp. 45–52). MIT Press.

Flanagan, O., H. Sarkissian, and D. Wong. “"What is the Nature of Morality? A Response to Casebeer, Railton, and Ruse".” In *Moral Psychology: The Evolution of Morality*, edited by Walter Sinnott-Armstrong, 1:45–52. MIT Press, 2007.

Flanagan O, Sarkissian H, Wong D. "What is the Nature of Morality? A Response to Casebeer, Railton, and Ruse". In: Sinnott-Armstrong W, editor. *Moral Psychology: The Evolution of Morality*. MIT Press; 2007. p. 45–52.

Flanagan, O., et al. “"What is the Nature of Morality? A Response to Casebeer, Railton, and Ruse".” *Moral Psychology: The Evolution of Morality*, edited by Walter Sinnott-Armstrong, vol. 1, MIT Press, 2007, pp. 45–52.

Flanagan O, Sarkissian H, Wong D. "What is the Nature of Morality? A Response to Casebeer, Railton, and Ruse". In: Sinnott-Armstrong W, editor. *Moral Psychology: The Evolution of Morality*. MIT Press; 2007. p. 45–52.