Raphael, D. D. (1994). Moral philosophy (2nd, enl. ed.). Oxford University Press.
芝加哥风格引文Raphael, D. D. Moral Philosophy. 2nd, enl. ed. Oxford ; New York: Oxford University Press, 1994.
MLA引文Raphael, D. D. Moral Philosophy. 2nd, enl. ed. Oxford University Press, 1994.
警告：这些引文格式不一定是100％准确.