@misc{Sombart_Werner_(1863–1941)_Proletarjat_1907,
 author={Sombart, Werner (1863–1941)},
 editor={J. B. Tł.},
 copyright={Public Domain},
 address={Warszawa},
 journal={Biblioteka Społeczno-Ekonomiczna},
 howpublished={online},
 year={1907},
 publisher={Księgarnia Naukowa},
 language={pol},
 type={Text},
 title={Proletarjat},
 URL={http://www.rcin.org.pl/ifis/Content/35004/PDF/WA004_30248_U7424_Sombart-Proletarjat_o.pdf},
 keywords={proletariat},
}