@misc{Olaczek_Romuald_Old_1961,
 author={Olaczek, Romuald},
 volume={17 nowa seria},
 number={4},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1961},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={Old trees in the park at Babsk},
 type={Text},
 URL={http://rcin.org.pl/Content/80670/PDF/KR038_103124_r1961-t17-no4_ChPO-Olaczek-41-42.pdf},
}