@misc{Rybowski_Mikołaj_(1839–1914)_Kruk_1883,
 author={Rybowski, Mikołaj (1839–1914)},
 copyright={Public Domain},
 address={Lwów},
 address={(Lwów)},
 howpublished={online},
 year={1883},
 publisher={nakładem Gal. Towarzystwa Ochrony Zwierząt},
 publisher={(Z Drukarni Ludowej pod zarządem St. Baylego)},
 language={pol},
 title={Kruk : obrazek z historyi naturalnej},
 URL={http://rcin.org.pl/miiz/Content/57150/PDF/WA058_9218_K11756_Kruk-Rybowski.pdf},
 keywords={ravens, common raven, human-animal relationship, symbolic aspects, folklore, popular works, behaviour, Corvus corax},
}