@misc{Heyking_Karol_Henryk_Herman_Beniamin_(1752–1809)._Autor_O_1790,
 author={Heyking, Karol Henryk Herman Beniamin (1752–1809). Autor and Dufour, Piotr (1730–1797). Drukarz},
 copyright={Public Domain},
 address={W Warszawie},
 howpublished={online},
 year={1790},
 publisher={w Drukarni P. Dufour...},
 language={pol},
 title={O Seymie Teraznieyszym W Kurlandyi i o Jego Prawnym Odroczeniu},
 type={Text},
 URL={http://www.rcin.org.pl/Content/209323/PDF/WA248_243921_XVIII-1-1070_o-sejmie_o.pdf},
 keywords={Kurlandia (Łotwa) - 18th c., Polish journalistic writing - 18th c., French journalistic writing - 18th c.},
}