@misc{Dickstein_Samuel_(1851–1939)_Gieometryja_1889,
 author={Dickstein, Samuel (1851–1939)},
 copyright={Public Domain},
 address={Warszawa},
 howpublished={online},
 year={1889},
 publisher={Drukarnia Józefa Sikorskiego},
 language={pol},
 language={pol},
 type={Text},
 title={Gieometryja elementarna},
 URL={http://rcin.org.pl./Content/9074/PDF/WA35_4390_7306_Gieometryja.pdf},
}