000 00463nam a2200169Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a368.40973
_bUn58
110 _aU S. Social Security Board. Office of the Actuary
245 _aActuarial tables based on the U S life tables
_b1979-81
260 _c1986
300 _a134p.
440 _aActuarial study; no 96
650 _aSocial insurance
942 _cBK
999 _c85379
_d85379