Obrinsky, M. (1983). Profit theory and capitalism. University of Pennsylvania Press.
芝加哥风格引文Obrinsky, Mark. Profit Theory and Capitalism. Philadelphia: University of Pennsylvania Press, 1983.
MLA引文Obrinsky, Mark. Profit Theory and Capitalism. University of Pennsylvania Press, 1983.
警告：这些引文格式不一定是100％准确.