@misc{_Plan_1939,
 copyright={Public Domain},
 address={[Warszawa]},
 address={(Warszawa)},
 howpublished={online},
 year={1939},
 publisher={A. Chmieliński},
 publisher={(Zakł. Kart. W. Cukrzyński, S. Goliński i S-ka)},
 language={pol},
 title={Plan Wielkiej Warszawy},
 type={Image},
 keywords={street maps, Warsaw street maps, Warsaw, 20th century},
}