Hart, William L <br/><br/>
Mathematics of investment / 
William L. Hart. 
 - 5th ed 
 - Manila :  National Bookstore,  c1980. 
 - 1 v. (various pagings) : figs.  tables. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>971-08-1177-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business mathematics<br/>Annuities<br/>Insurance, Life--Mathematics