Knight, F. H. (1971). Risk, uncertainty and profit. Chicago: University of Chicago Press.
Trích dẫn kiểu ChicagoKnight, Frank H. Risk, Uncertainty and Profit. Chicago: University of Chicago Press, 1971.
MLA引文Knight, Frank H. Risk, Uncertainty and Profit. Chicago: University of Chicago Press, 1971.
警告：这些引文格式不一定是100％准确.