@misc{Twardowski_Kazimierz_(1866–1938)_List_29.01.1930,
 author={Twardowski, Kazimierz (1866–1938)},
 address={Lwów},
 howpublished={online},
 year={29.01.1930},
 language={pol},
 title={List Kazimierza Twardowskiego do Ivana Mirczuka : 29.01.1930},
 type={Text},
 URL={http://www.rcin.org.pl/Content/13780/PDF/WA004_30262_TR2-1-T-25-43_Twardo-List-do-Mircz.pdf},
 keywords={Twardowski, Kazimierz (1866-1938) -- correspondence, Mìrčuk, Ìvan (1891-1961) -- correspondence, philosophy -- Poland -- 20 c., letter writing, Polish -- 20 c.},
}