Lennox. Metaethics, Egoism, and Virtue. University of Pittsburgh Press.
芝加哥风格引文Lennox. Metaethics, Egoism, and Virtue. University of Pittsburgh Press.
MLA引文Lennox. Metaethics, Egoism, and Virtue. University of Pittsburgh Press.
警告：这些引文格式不一定是100％准确.