@misc{_Let’s_1972,
 volume={28 nowa seria},
 number={5-6},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1972},
 publisher={Polish Academy of Sciences},
 language={pol},
 title={Let’s protect Our Indigenous Nature Vol. 28 issue 5-6 (1972)},
 type={Text},
}