@misc{Szafer_Władysław_(1886–1970)_Kartoteka_Unpublished,
 author={Szafer, Władysław (1886–1970)},
 copyright={Public Domain},
 howpublished={online},
 year={Unpublished},
 language={mul},
 title={Kartoteka "Biblioteka Prof. Władysława Szafera" : Pit-Pot},
 type={Text},
 URL={http://www.rcin.org.pl/Content/79107/PDF/KR171_93965_Kart-Szafera_Pit-Pot.pdf},
}