00430pab a2200133 454500008004000000100002300040245010500063260000900168300001100177362000900188650003000197700002400227773004500251180718b1983   xxu||||| |||| 00| 0 eng d  aNugent, Jeffrey B.  aOld age pensions and fertility in rural areas of less developed countriesbSome evidence from Mexico  c1983  a809-29  aJuly  aOld Age Security - Mexico  aR. Thomas Gillasphy  aEconomic Development and Cultural Change