Knight, F. H. (1971). Risk, uncertainty and profit. University of Chicago.
शिकागो स्टाइल उद्धरणKnight, Frank H. Risk, Uncertainty and Profit. Chicago: University of Chicago, 1971.
एमएलए उद्धरणKnight, Frank H. Risk, Uncertainty and Profit. University of Chicago, 1971.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.