@misc{Kolberg_Wilhelm_Karol_Adolf_(1807–1877)_Plan_[ca,
 author={Kolberg, Wilhelm Karol Adolf (1807–1877) and Herkner, Józef (1802–1864). Litogr. and Gins, Aleksander (c. 1819 – 1908). Druk.},
 copyright={Public Domain},
 address={[Warszawa]},
 howpublished={online},
 year={[ca 1850]},
 publisher={wydał W. Kolberg},
 publisher={(druk A. Ginsa N. 755)},
 language={pol},
 title={Plan Warszawy},
 keywords={street maps, Warsaw street maps, Warsaw, 19th century},
}