APA (7th ed.) Citation

Knight, F. H. (1921). Risk, uncertainty and profit. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Knight, Frank H. Risk, Uncertainty and Profit. Boston: Houghton Mifflin, 1921.

MLA (9th ed.) Citation

Knight, Frank H. Risk, Uncertainty and Profit. Houghton Mifflin, 1921.