Markowitz, H. 1927- Risk-return analysis the theory and practice of rational investing / Volume I : Harry Markowitz with Kenneth Blay. - New York : McGraw-Hill, 2014. - xxxvi, 230 p. : ill. ; 24 cm. Includes bibliographical references (p. 209-215) and index ISBN: 9780071817936 Subjects--Topical Terms: Blay, Kenneth.Investment analysis.Investments--Mathematical models.Portfolio management.