@misc{Heck_Walerian_Mapa_[ca1896-1909],
 author={Heck, Walerian},
 copyright={Public Domain},
 address={[S.l.]},
 address={(Kraków)},
 howpublished={online},
 year={[ca1896-1909]},
 publisher={nakładem własnym},
 publisher={(Litogr. K. Kranikowskiego)},
 language={pol},
 title={Mapa historyczna Polski},
 keywords={historical maps, Poland},
}