@misc{Gröll_Michał_(1722–1798)._Drukarz_Essai_[przed,
 author={Gröll, Michał (1722–1798). Drukarz},
 copyright={Public Domain},
 address={À Varsovie},
 howpublished={online},
 year={[przed 22 I] 1791},
 publisher={de l'Imprimerie de Michel Gröll ...},
 language={fre},
 title={Essai De Catechisme National},
 type={Text},
 URL={http://rcin.org.pl/Content/236599/WA248_272972_XVIII-1-524_essai-de-catechisme_o.pdf},
 keywords={Constitution of the 3rd of May 1791 (Poland), Polish journalistic writing - 18th c.},
}