@misc{Bielawski_Ryszard_Badania_[ca,
 author={Bielawski, Ryszard},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 howpublished={online},
 year={[ca 1955]},
 title={Badania terenowe cz. 4},
 type={Image},
 URL={http://rcin.org.pl/miiz/Content/209331/PDF/WA058_188968_Bielawski_Badania-terenowe.pdf},
 keywords={field research, Jaczewski, Tadeusz (1899-1974), Riedel, Adolf (1930-2010), Burakowski, Bolesław (1905-2003), Nast, Janusz (1908-1991), Pisarski, Bohdan (1928-1992), Goljan, Antoni Roman (1915-1979), Kostrowicki, Andrzej Samuel (1921-2007), Zoological Institute of the Polish Academy of Sciences, biologists - Poland - biography},
}