@misc{Sumiński_Stanisław_Michał_(1891–1943)_Podręcznik_1924,
 author={Sumiński, Stanisław Michał (1891–1943)},
 copyright={Public Domain},
 address={Warszawa},
 address={(Warszawa)},
 howpublished={online},
 year={1924},
 publisher={Wydawnictwo M. Arcta},
 publisher={(Drukarnia M. Arcta)},
 language={pol},
 title={Podręcznik biologji},
 URL={http://rcin.org.pl/miiz/Content/7607/PDF/WA058_3256_K2078_Podr-biol-Suminski.pdf},
 keywords={biology - textbooks},
}