005270000a2200181000450000500170000004100160001708000170003310000210005024501240007126000260019530000100022150000090023165000260024065000150026665000170028165000300029865000170032820231004112458.0  aPortuguês  a314.1 FRO de  aFromont, Pierre.  aDémographie économique [monografia]  les rapports de l'économie et de la population dans le mondecPierre Fromont  aParis:bPayot,c1947.  a222 p  a1947  aAspectos económicos  aDemografia  aMigração  aMigração rural-urbana  aNupcialidade