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