@misc{Witkowska_Helena_(1870–1938)_Nauka_1920,
 author={Witkowska, Helena (1870–1938)},
 editor={Sawicki, Ludomir (1884–1928)},
 copyright={Public Domain},
 address={Warszawa},
 address={Wilno},
 address={(Cracovie)},
 howpublished={online},
 year={1920},
 publisher={Wydaw. M. Arcta},
 publisher={Księgarnia Stow. Nauczycielstwa Polskiego},
 publisher={(Drukarnia "Głosu Narodu")},
 language={pol},
 title={Nauka o Polsce współczesnej},
 type={Text},
 keywords={geography of Poland, Polish society, history of Poland, economy of Poland, Poland},
}