Merkoša sitáhtat

APA-čujuhus (7. p.)
Copp, D. (2007). Morality in a natural world: Selected essays in metaethics. Cambridge University Press.
Chicago-čujuhus (17. p.)
Copp, David. Morality in a Natural World: Selected Essays in Metaethics. Cambridge ; New York: Cambridge University Press, 2007.
MLA-čujuhus (9. p.)
Copp, David. Morality in a Natural World: Selected Essays in Metaethics. Cambridge University Press, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.