@misc{Kruszelnicki_Jerzy_The_1981,
 author={Kruszelnicki, Jerzy},
 volume={37},
 editor={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences},
 number={6},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1981},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 type={Text},
 title={The nature of the "Krutynia" reserve in the Mazury Lakeland projected to commemorate the writer Melchior Wańkowicz},
 URL={http://rcin.org.pl/Content/83762/PDF/KR038_99638_r1981-t37-no6_ChPO-Kruszelnicki-44-51.pdf},
 keywords={Krutynia - nature reserve, Masurian Landscape Park, Masurian Lakeland},
}