@misc{_Let’s_1989,
 volume={45},
 number={4},
 editor={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1989},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={Let’s protect Our Indigenous Nature Vol. 45 issue 4 (1989)},
 type={Text},
}