Donagan, A. (1977). The theory of morality. University of Chicago Press.
芝加哥风格引文Donagan, Alan. The Theory of Morality. Chicago: University of Chicago Press, 1977.
MLA引文Donagan, Alan. The Theory of Morality. University of Chicago Press, 1977.
警告：这些引文格式不一定是100％准确.