Marx, K., Engels, F., Badia, G., & Mortier, J. Correspondance. Paris: Editions Sociales.
芝加哥风格引文Marx, Karl, Friedrich Engels, Gilbert Badia, 与 Jean Mortier. Correspondance. Paris: Editions Sociales.
MLA引文Marx, Karl, et al. Correspondance. Paris: Editions Sociales.
警告：这些引文格式不一定是100％准确.