Roemer, J. E. (1988). Free to lose: An introduction to Marxist economic philosophy. Harvard University Press.
芝加哥风格引文Roemer, John E. Free to Lose: An Introduction to Marxist Economic Philosophy. Cambridge, MA: Harvard University Press, 1988.
MLA引文Roemer, John E. Free to Lose: An Introduction to Marxist Economic Philosophy. Harvard University Press, 1988.
警告：这些引文格式不一定是100％准确.