Knight, Frank H. Risk, uncertainty and profit / Frank H. Knight - Boston : Houghton Mifflin, c1921. - ixvi, 381 p. : 21 cm. ISBN: LCCN: Subjects--Topical Terms: Risk.Profit. LC Class. No.: HB601 / .K7 1921 Dewey Class. No.: 338.5 / K69r