00518nam a2200181 a 450000500170000000800410001702000150005810000210007324500500009425000120014426000430015630000340019950000200023365000250025365000140027865000330029285200110032520191206013834.0071023s19uu    xx            00    eng d  a971081177010aHart, William L.10aMathematics of investment /cWilliam L. Hart.  a5th ed.0 aManila :bNational Book Store,cc1980.  a1 v. (various pagings) : ill.  aIncludes index.  aBusiness mathematics  aAnnuities 4aInsurance, LifexMathematics  7OLOPSC