@misc{_Ekologia_1972,
 volume={20},
 editor={Polish Academy of Sciences, Institute of Ecology},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 journal={Ekologia Polska},
 howpublished={online},
 year={1972},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 language={eng},
 language={ger},
 language={fre},
 title={Ekologia Polska t. 20 (1972)},
 type={Text},
 keywords={Ecology - journals, Ecology - Poland - journals},
}