@misc{Poniatowski_Stanisław_(1884–1945)_Kraje,
 author={Poniatowski, Stanisław (1884–1945) and https://viaf.org/viaf/56736113/},
 howpublished={online},
 language={pol},
 title={Kraje bałtyckie - etnografia polityczna},
 type={text},
 keywords={political etnography, ethnology, Balts, Enrich Europeana Plus},
}