Proudhon, P. J. (1979). The principle of federation. University of Toronto Press.
芝加哥风格引文Proudhon, Pierre Joseph. The Principle of Federation. Toronto: University of Toronto Press, 1979.
MLA引文Proudhon, Pierre Joseph. The Principle of Federation. University of Toronto Press, 1979.
警告：这些引文格式不一定是100％准确.