@misc{Otęska-Budzyn_Janina_Limestone_1977,
 author={Otęska-Budzyn, Janina},
 volume={33},
 editor={Research Centre for the Protection of Nature of the Polish Academy of Sciences},
 number={4},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1977},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 type={Text},
 title={Limestone rocks in the environs of Ryczów in the Częstochowa Upland},
 URL={http://rcin.org.pl/Content/84429/PDF/KR038_104683_r1977-t33-no4_ChPO-Oteska-21-31.pdf},
 keywords={inanimate nature conservation, geology, rocks},
}