@misc{Breyer_Stanisław_(1873–_)_Zagadka_1929,
 author={Breyer, Stanisław (1873– )},
 copyright={Public Domain},
 address={Kraków},
 address={Warszawa},
 address={(s. 1.)},
 howpublished={online},
 year={1929},
 publisher={skład główny Gebethner i Wolff},
 publisher={"Dom Książki Polskiej},
 publisher={[s. n.]},
 language={pol},
 title={Zagadka człowieka},
 type={Text},
 URL={http://www.rcin.org.pl/Content/24329/PDF/WA004_12891_U39916_Breyer-Zagadka_o.pdf},
 keywords={philosophical anthropology, natural sciences, spiritism},
}