@misc{A._S._Autor_List_[po,
 author={A. S. Autor},
 copyright={Public Domain},
 address={[Lublin?]},
 howpublished={online},
 year={[po 26 IX 1791]},
 publisher={[wydawca nieznany]},
 language={pol},
 type={Text},
 title={List Pewney Matki z Lubelskiego Pisany Do Syna Oddanego Pierwszy Raz Do Konwiktu XX. Piarow},
 URL={http://www.rcin.org.pl/Content/190265/PDF/WA248_218319_XVIII-1-1406_list-pewnej_o.pdf},
 keywords={Polish education - 18th c., Polish letters - 18th c., Ordo Clericarum Regularium Pauperum Matris Dei Scholarum Piarum},
}