The Demopædia Encyclopedia on Population is under heavy modernization and maintenance. Outputs could look bizarre, sorry for the temporary inconvenience
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来自Demopædia
波兰语
The Demopædia Encyclopedia on Population is under heavy modernization and maintenance. Outputs could look bizarre, sorry for the temporary inconvenience
波兰语
United nations
Departement of Economic and Social Affairs
Population Division
International Union
for the Scientific Study
of Population