@misc{Kulmatycki_Włodzimierz_Julian_(1895–1939)_Jak_1931,
 author={Kulmatycki, Włodzimierz Julian (1895–1939)},
 copyright={Public Domain},
 address={Toruń},
 address={(Toruń)},
 journal={Publications of famous biologists - a collection of prints},
 howpublished={online},
 year={1931},
 publisher={[unknown]},
 publisher={(Pomorska Drukarnia Rolnicza Sp. Akc.)},
 language={pol},
 type={Text},
 title={Jak gospodarować w stawach aby mieć dochód z ryb},
 URL={http://rcin.org.pl./Content/78881/PDF/547.pdf},
 keywords={Fish - income calculation, Fishing ponds, Fish - restocking, One-year-old fish, Two-year-old fish},
}