@misc{_Jerzy_[ca,
 editor={Gieysztor, Marian (1901–1961). Collector},
 copyright={Public Domain},
 howpublished={online},
 year={[ca 1924]},
 type={Image},
 title={Jerzy Jarocki in Białowieża},
 URL={http://rcin.org.pl/miiz/Content/86701/WA058_90911_Jarocki-J_KEF33.pdf},
 keywords={Jarocki, Jerzy (1898-1946), naturalists, zoologists, academics, biologists - Poland - biography, Chair of Zoology UW, Warsaw University},
}