Ewing, A. (1964). Fundamental questions of philosophy. Routledge & Kegan.
芝加哥风格引文Ewing, A. Fundamental Questions of Philosophy. London: Routledge & Kegan, 1964.
MLA引文Ewing, A. Fundamental Questions of Philosophy. Routledge & Kegan, 1964.
警告：这些引文格式不一定是100％准确.