@misc{Chałupczyński_Adam_(1822–1887)_O_1880,
 author={Chałupczyński, Adam (1822–1887)},
 copyright={Public Domain},
 address={Warszawa},
 howpublished={online},
 year={1880},
 publisher={druk. S. Orgelbranda Synów},
 language={pol},
 title={O niektórych błędach w teoryi Darwina},
 URL={http://www.rcin.org.pl/Content/4984/PDF/WA058_3164_K735_O-niekt-Darwi-Chalup3.pdf},
 keywords={natural selection, evolution (biology), Darwin, Charles (1809-1882) - criticism and interpretation},
}