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Warsaw Statistical Committee.
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Proceedings of the Warsaw Statistical Committee: Vol. 1-40. - Warsaw, 1889-1914. -
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Source of the electronic copy: PB |
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Issue. 27: Statistical and economic outline of the ten provinces of the Kingdom of Poland: A report for 1906. A brief yearbook of the Privisli region. - A type. Warsaw Textbook. district, 1907. -100 p. : table .. -
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Source of the electronic copy: PB |
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