Posner, R. A. (1999). The problematics of moral and legal theory. Belknap Press of Harvard University Press.
芝加哥风格引文Posner, Richard A. The Problematics of Moral and Legal Theory. Cambridge: Belknap Press of Harvard University Press, 1999.
MLA引文Posner, Richard A. The Problematics of Moral and Legal Theory. Belknap Press of Harvard University Press, 1999.
警告：这些引文格式不一定是100％准确.