@misc{Bielawski_Ryszard_Budynek_[ca,
 author={Bielawski, Ryszard},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 howpublished={online},
 year={[ca 1955]},
 title={Budynek Instytutu Zoologicznego PAN},
 type={Image},
 URL={http://rcin.org.pl/Content/209335/PDF/WA058_174592_Instytut-Zool_budynek.pdf},
 keywords={Zoological Institute of the Polish Academy of Sciences, Warsaw},
}