@misc{Sztolcman_Jan_(1854–1928)_Szkice_1916,
 author={Sztolcman, Jan (1854–1928)},
 copyright={Public Domain},
 address={Warszawa},
 address={Kraków},
 address={(Warszawa)},
 howpublished={online},
 year={1916},
 publisher={Gebethner i Wolff ;},
 publisher={G. Gebethner i Spółka},
 publisher={(Tow. Akc. S. Orgelbranda S-ów)},
 language={pol},
 title={Szkice ornitologiczne},
 URL={http://www.rcin.org.pl/Content/51269/PDF/WA058_989_K5543-II_Szkice-ornit-Sztolcm.pdf},
 keywords={ornithology},
}