@misc{Piotrowski_Stanisław_(1849–1919)_K._1891,
 author={Piotrowski, Stanisław (1849–1919)},
 copyright={Public Domain},
 address={Warszawa},
 howpublished={online},
 year={1891},
 publisher={skł. gł. w Księgarni E. Wende i Cʿ},
 language={pol},
 title={K. Marxa teorja wartości : studjum ekonomiczne},
 type={Text},
 URL={http://www.rcin.org.pl/Content/34371/PDF/WA004_20789_T2133_Piotrowski-Teorja_moh.pdf},
 keywords={political economy of capitalism (19 c.), Marxism, economic value (19 c.)},
}