@misc{Hader_Ernst_(1866–1910)_Charles_1883,
 author={Hader, Ernst (1866–1910)},
 copyright={Public Domain},
 howpublished={online},
 year={1883},
 title={Charles Robert Darwin},
 type={Image},
 URL={http://www.rcin.org.pl/Content/211627/PDF/WA058_248045_Darwin_Charles.pdf},
 keywords={Darwin, Charles (1809-1882)},
}