Himmelmann, B., & Louden, R. B. (2015). Why be moral? De Gruyter.
Lua i Stíl Chicago (17ú heag.)Himmelmann, Beatrix, agus Robert B. Louden. Why Be Moral? Berlin, [Germany] ; Boston, [Massachusetts]: De Gruyter, 2015.
Lua MLA (9ú heag.)Himmelmann, Beatrix, agus Robert B. Louden. Why Be Moral? De Gruyter, 2015.
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