@misc{Forster_Karol_(1800-1879)_Pologne_1840,
 author={Forster, Karol (1800-1879)},
 address={Paris},
 howpublished={online},
 year={1840},
 publisher={Typographie de Firmin Didot Freres},
 language={fre},
 title={Pologne},
 type={książka},
 keywords={Polska, Historia, Ludność},
}