Dyfyniad APA

Rachels, J. (2003). The elements of moral philosophy (4th ed.). McGraw - Hill.

Dyfyniad Arddull Chicago

Rachels, James. The Elements of Moral Philosophy. 4th ed. Boston: McGraw - Hill, 2003.

Dyfyniad MLA

Rachels, James. The Elements of Moral Philosophy. 4th ed. McGraw - Hill, 2003.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.