Velleman, J. D. (2015). Foundations for moral relativism. Open Book Publishers.
Lua i Stíl Chicago (17ú heag.)Velleman, J. David. Foundations for Moral Relativism. Cambridge, England: Open Book Publishers, 2015.
Lua MLA (9ú heag.)Velleman, J. David. Foundations for Moral Relativism. Open Book Publishers, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.