Willard, D., Porter, S. L., Preston, A., & Elshof, G. A. T. (2018). The disappearance of moral knowledge. Routledge.
Lua i Stíl Chicago (17ú heag.)Willard, Dallas, Steven L. Porter, Aaron Preston, agus Gregg A. Ten Elshof. The Disappearance of Moral Knowledge. New York ; London: Routledge, 2018.
Lua MLA (9ú heag.)Willard, Dallas, et al. The Disappearance of Moral Knowledge. Routledge, 2018.
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