Williams, B. A. O. (1993). Morality: An introduction to ethics (Canto ed.). Cambridge University Press.
芝加哥风格引文Williams, Bernard Arthur Owen. Morality: An Introduction to Ethics. Canto ed. Cambridge ; New York: Cambridge University Press, 1993.
MLA引文Williams, Bernard Arthur Owen. Morality: An Introduction to Ethics. Canto ed. Cambridge University Press, 1993.
警告：这些引文格式不一定是100％准确.