000 00305nam a2200121Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a330 CLA;E
100 _aClark, Robert L
245 4 _aThe Economics of individual & Population aging
260 _aCambridge
_c1979
942 _cGB
999 _c16658
_d16658