@misc{Wais_Kazimierz_(1865–1934)_O_1911,
 author={Wais, Kazimierz (1865–1934) and Drukarnia Katolicka Józefa Chęcinskiego (Lwów)},
 copyright={Public Domain},
 address={Lwów},
 howpublished={online},
 year={1911},
 publisher={z Drukarni Józefa Chęcińskiego},
 language={pol},
 title={O zwierzęcem pochodzeniu człowieka},
 URL={http://rcin.org.pl/miiz/Content/54676/PDF/WA058_3192_K482_O-zwierz-poch-Wais.pdf},
 keywords={human evolution, popular works, origin of human beings},
}