Hart, William L. <br/><br/>Mathematics of invetsment William L. Hart  -- 5th ed.  -- Lexington, MA  D.C Healty and Co.  1975 <br/>xiii, 296p.  20cm. <br/><br/> Includes index <br/><br/><label>ISBN: </label>9710811770 <br/><br/><label>Subjects--Topical Terms: </label><br/>Business Mathematics<br/><br/><label>Dewey Class. No.: </label>GC  513.93 H251 1957