@misc{_Let’s_1963, volume={19 nowa seria}, number={6}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Kraków}, journal={Let's protect Our Indigenous Nature}, howpublished={online}, year={1963}, publisher={Polish Academy of Sciences}, publisher={Państwowe Wydawnictwo Naukowe}, language={pol}, type={Text}, title={Let’s protect Our Indigenous Nature Vol. 19 issue 6 (1963)}, }