@misc{L'Huillier_Simon_Antoine_Jean_(1750–1840)_Arytmetyka_1841,
 author={L'Huillier, Simon Antoine Jean (1750–1840)},
 copyright={Public Domain},
 address={Warszawa},
 howpublished={online},
 year={1841},
 publisher={Drukarnia XX Pijarów},
 language={pol},
 title={Arytmetyka sposobem do pojęcia łatwym},
 type={Text},
 URL={http://www.rcin.org.pl/Content/67719/PDF/WA35_88142_7307_Arytmetyka.pdf},
}