Hart, William Le Roy, 1892- <br/><br/>
Mathematics of investment / 
by William L. Hart. 
 - 4th ed. 
 - Boston :  Heath,  [c1958, 1965] 
 - vii, 150 p. tables. 22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business mathematics<br/>Anonities<br/>Insurance, Life
<br/><br/><label>LC Class. No.: </label>510  / H251