Sinnott-Armstrong, W. (1996). Moral Skepticism and Justification. In W. Sinnott-Armstrong & M. Timmons (Eds.), Moral Knowledge? New Readings in Moral Epistemology (pp. 3–48). New York: Oxford University Press.

Sinnott-Armstrong, W. “Moral Skepticism and Justification.” In Moral Knowledge? New Readings in Moral Epistemology, edited by W. Sinnott-Armstrong and M. Timmons, 3–48. New York: Oxford University Press, 1996.

Sinnott-Armstrong W. Moral Skepticism and Justification. In: Sinnott-Armstrong W, Timmons M, editors. Moral Knowledge? New Readings in Moral Epistemology. New York: Oxford University Press; 1996. p. 3–48.

Sinnott-Armstrong, W. “Moral Skepticism and Justification.” Moral Knowledge? New Readings in Moral Epistemology, edited by W. Sinnott-Armstrong and M. Timmons, Oxford University Press, 1996, pp. 3–48.

Sinnott-Armstrong W. Moral Skepticism and Justification. In: Sinnott-Armstrong W, Timmons M, editors. Moral Knowledge? New Readings in Moral Epistemology. New York: Oxford University Press; 1996. p. 3–48.