@misc{_Ekologia_1969,
 volume={15},
 editor={Polska Akademia Nauk. Komitet Ekologiczny},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Ekologia Polska. Seria B},
 address={Warszawa},
 howpublished={online},
 year={1969},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 type={Text},
 title={Ekologia Polska. Seria B t. 15 (1969)},
 keywords={Ecology - journals, Ecology - Poland - journals},
}