{"id":"001046663","type":"book","title":"Ludwik Krzywicki jako pionier badań etnodemograficznych","publisher":"Poznańskie Towarzystwo Przyjaciół Nauk","publisher-place":"Pozna","pages":"347-365","container-title":"Społeczeństwo pierwotne, jego rozmiary i wzrost : [Primitive society and its vital statistics","author":[{"family":"Posern-Zieliński","given":"Aleksander"}],"issued":{"raw":"2004"}}