Paul Demeny
![Demény Pál. Taken on the 25th of May, 2017. Budapest Family Summit 25 – 28 May 2017. Budapest Demographic Forum 2](https://upload.wikimedia.org/wikipedia/commons/8/82/Dem%C3%A9ny_P%C3%A1l_%281%29.jpg)
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4book bibliotecaUNESCO
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