Midgley, M. (1996). The ethical primate: Humans, freedom, and morality. Routledge.
芝加哥风格引文Midgley, Mary. The Ethical Primate: Humans, Freedom, and Morality. New York: Routledge, 1996.
MLA引文Midgley, Mary. The Ethical Primate: Humans, Freedom, and Morality. Routledge, 1996.
警告：这些引文格式不一定是100％准确.