@misc{Rosenfeld_Morris_(1862–1923)_Pieśni_1906,
 author={Rosenfeld, Morris (1862–1923)},
 copyright={Public Domain},
 address={Warszawa},
 howpublished={online},
 year={1906},
 publisher={[s.n.]},
 type={Text},
 title={Pieśni Pracy},
 URL={http://www.rcin.org.pl/Content/69099/PDF/WA248_89676_F-22-472_rosenfeld-piesni_o.pdf},
 keywords={Yiddish poetry - 20 c.},
}