@misc{Polakowsky_Helmut_(1847–_)._Autor_Die_1890, author={Polakowsky, Helmut (1847– ). Autor}, copyright={Public Domain}, address={Berlin}, howpublished={online}, year={1890}, publisher={[wydawca nieznany]}, language={ger}, title={Die Republiken Mittel-Amerikas im Jahre 1889}, type={Text}, URL={http://www.rcin.org.pl/igipz/Content/83636/PDF/WA51_104882_PANII2923-r1890_Republiken-Mittel.pdf}, keywords={travels, geographical descriptions, Guatemala}, }