@misc{Liard_Louis_(1846–1917)_Logika_1886,
 author={Liard, Louis (1846–1917)},
 copyright={Public Domain},
 address={Warszawa},
 address={(Warszawa},
 howpublished={online},
 year={1886},
 publisher={nakładem Redakcyi "Prawdy"},
 publisher={(druk K. Kowalewskiego)},
 language={pol},
 type={Text},
 title={Logika},
 URL={http://www.rcin.org.pl/ifis/Content/29212/PDF/WA004_18858_P6855_Liard-Logika.pdf},
 keywords={logic},
}