@misc{Czarkowski_Piotr_(1808-1898)_Opyty_1873,
 author={Czarkowski, Piotr (1808-1898)},
 address={Varšava},
 howpublished={online},
 year={1873},
 publisher={[s.n.]},
 language={pol},
 title={Opyty slavânskago slovoproizvodstva},
 type={książka},
}