Hollander, S. (2011). Friedrich Engels and Marxian political economy. Cambridge University Press.
芝加哥风格引文Hollander, Samuel. Friedrich Engels and Marxian Political Economy. Cambridge: Cambridge University Press, 2011.
MLA引文Hollander, Samuel. Friedrich Engels and Marxian Political Economy. Cambridge University Press, 2011.
警告：这些引文格式不一定是100％准确.