@misc{_Commission_1925,
 editor={Kobylański, Józef Władysław (1893–1971). Collector},
 copyright={Public Domain},
 howpublished={online},
 year={1925},
 type={Image},
 title={Commission for the fight against the bark beetle - Marian Liberak},
 URL={http://rcin.org.pl/Content/115176/PDF/WA058_97940_Liberak_1925.pdf},
 keywords={Liberak, Marian Adam (1890-1931), Sokołowski, Stanisław (1865-1942), foresters, environmental activists, Tatra Mountains (Poland)- forests, fight against bark beetle},
}