Search for: [Subject and Keywords = demography] OR [Subject and Keywords = population] OR [Subject and Keywords = Poland] OR [Subject and Keywords = 19th\-20th century] OR [Subject and Keywords = Demografia \-\- Polska \-\- historia \[KABA\]] OR [Subject and Keywords = Polska \-\- ludność \-\- 19 w. \-\- konferencje \[KABA\]] OR [Subject and Keywords = Polska \-\- ludność \-\- 1900\-1945 \-\- konferencje \[KABA\]] OR [Title = Naturalny obrót ludności] OR [Title = Naturalny obrót ludności] OR [Creator = Ormicki, Wiktor Rudolf \(1898–1941\)] OR [Creator = Ormicki, Wiktor Rudolf \(1898–1941\)]

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