@misc{Merczyng_Henryk_(1860-1916)_Dumania_1900,
 author={Merczyng, Henryk (1860-1916)},
 address={Petersburg},
 howpublished={online},
 year={1900},
 publisher={K. Grendyszyński},
 title={Dumania przyrodnika},
 type={książka},
}