@misc{Rybacki_Mariusz_The_1989,
 author={Rybacki, Mariusz},
 volume={45},
 editor={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences},
 number={1},
 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},
 type={Text},
 title={The toad Bufo calamita in the province of Szczecin},
 URL={http://rcin.org.pl/Content/88605/PDF/KR038_109200_r1989-t45-no1_ChPO-Rybacki-65-68.pdf},
 keywords={natterjack toad, Epidalea calamita, Bufo calamita},
}