@misc{Poliński_Władysław_Karol_Aleksander_(1885–1930)_Unio_1917,
 author={Poliński, Władysław Karol Aleksander (1885–1930)},
 copyright={Public Domain},
 address={Warszawa},
 address={(Warszawa)},
 journal={Publications of famous biologists - a collection of prints},
 howpublished={online},
 year={1917},
 publisher={[unknown]},
 publisher={(Drukarnia i Litografia p. f. Jan Cotty)},
 language={pol},
 title={Unio crassus Retz. subsp. polonicus n. subsp., subsp. ornatus n. subsp.},
 type={Text},
 URL={http://www.rcin.org.pl/Content/107663/PDF/s832.pdf},
 keywords={Molluscs (Unio crassus) - "geographical races" - distribution - west-central Europe},
}