@misc{_Environs_[ca.1758],
 address={[S.l.]},
 howpublished={online},
 year={[ca.1758]},
 publisher={[s.n.]},
 language={niemiecki},
 title={Environs de Francfort et de Custrin. Planche 9},
 type={mapa},
 keywords={Nowa Marchia, kartografia, mapy - 18 w.},
}