000 00433pab a2200157 454500
008 180718b1987 xxu||||| |||| 00| 0 eng d
100 _aHalter, William, A.
245 _aThe impact of demographic change on social security financing
260 _c1987
300 _a471-502
362 _aSept.
650 _aInsurance, Social
700 _aRichard Hemming
773 _aInternational Monetary Fund Staff Papers
909 _a11656
999 _c11656
_d11656