00546nam a22001817i 450000500170000000800410001704100080005810000160006624500660008265000330014865000340018165100270021565000210024265300120026365500150027570000160029077300580030620141212093500.0940629s1994    sp     gr     000 0 spa c  aeng1 aMYERS, G.C.10aTHE WORLD AGES, THE FAMILY CHANGES. A DEMOGRAPHIC PERSPECTIVE14aEnvejecimiento demográfico14aEstadísticas de población14aPanorama internacional14aPersonas mayores10aMayores 4aDocumental1 aAGREE, E.M.0 tAGEING INTERNATIONALgVol. 21, no. 1 (1994), p. 11-18