@misc{Kajak_Zdzisław_Harper_1994,
 author={Kajak, Zdzisław},
 volume={40},
 editor={Polska Akademia Nauk. Instytut Ekologii},
 number={3},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Dziekanów Leśny},
 journal={Wiadomości Ekologiczne},
 howpublished={online},
 year={1994},
 publisher={Oficyna Wydawnicza Instytut Ekologii PAN},
 language={pol},
 type={Text},
 title={Harper D. 1992 - Eutrophication of freshwaters. Principles, problems and restoration - Chapman & Hall, London, New York, Tokyo, ss. 327. [ISBN 0-412-32970-0]},
 URL={http://rcin.org.pl/Content/153365/PDF/WA058_164181_P3259-40_Eko-Pol-B.pdf},
 keywords={eutrophication, freshwater ecology, reviews},
}