@misc{Lange_Józef_(1863–1918)_Postęp_1913,
 author={Lange, Józef (1863–1918) and Drukarnia "Gazety Handlowej".},
 copyright={Public Domain},
 address={Warszawa},
 howpublished={online},
 year={1913},
 publisher={Druk. "Gazety Handlowej"},
 language={pol},
 type={Text},
 title={Postęp a nacyonalizm},
 URL={http://rcin.org.pl./Content/5685/PDF/WA248_19625_F-22-175_lange-postep-o.pdf},
 keywords={Jews, Poland, nationalism, anti-Semitism, Polish Progressive Unification},
}