@misc{Białobok_Stefan._Redaktor_Protection_1979,
 author={Białobok, Stefan. Redaktor},
 volume={7},
 editor={Białobok, Stefan. Redaktor},
 editor={Polska Akademia Nauk. Instytut Dendrologii},
 copyright={Creative Commons Attribution BY-SA 4.0 license},
 journal={Nasze drzewa leśne},
 address={Warszawa-Poznań},
 howpublished={online},
 year={1979},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={Protection of trees},
 type={Text},
 URL={http://www.rcin.org.pl/Content/161538/PDF/KOR001_153990_1979_Ochrona-drzew.pdf},
 keywords={Betula, birch, protection birch},
}