Moore, G. (1984). Principia ethica. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoMoore, G.E. Principia Ethica. Cambridge: Cambridge University Press, 1984.
MLA引文Moore, G.E. Principia Ethica. Cambridge: Cambridge University Press, 1984.
警告：这些引文格式不一定是100％准确.