@misc{Gumplowicz_Ludwik_(1838–1909)_Osnovy_1899,
 author={Gumplowicz, Ludwik (1838–1909)},
 editor={Gessen, Vladimir Matveevič (1868–1920). Tł.},
 copyright={Public Domain},
 address={S.-Peterburg'},
 journal={Obrazovatel'naâ Biblioteka. Seriâ 2},
 howpublished={online},
 year={1899},
 publisher={Izd. O. N. Popovoj},
 publisher={(Tekst' pečatan' v' tipografíj Merkuševa)},
 language={rus},
 type={Text},
 title={Osnovy socíologíi},
 URL={http://www.rcin.org.pl/Content/34086/PDF/WA004_12687_U39375_Gumplowicz-Osnowy.pdf},
 keywords={sociology (19 c.)},
}