@misc{Czeczuga_Bazyli_On_1970,
 author={Czeczuga, Bazyli},
 volume={26 nowa seria},
 number={2},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Let's protect Our Indigenous Nature},
 address={Kraków},
 howpublished={online},
 year={1970},
 publisher={Polish Academy of Sciences},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={On the protection of the Narew river valley in the vicinity of Tykocin},
 type={Text},
 URL={http://rcin.org.pl/iop/Content/156096/PDF/KR038_185135_r1970-t26-no2_ChPO-Czeczuga-5-9.pdf},
 keywords={Narew},
}