Hart, William Le Roy,  1892- <br/><br/>
Mathematics of investment / 
William L. Hart 
 - 4th ed. 
 - Boston :  Heath,  c1970. 
 - 343, 150 p. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business mathematics.<br/>Mathematics.
<br/><br/><label>Dewey Class. No.: </label>510  / HAM 1970