Wolter, Edyta. “Educating and Teaching the Polish Society for Proper Relations With Nature in the Second Republic of Poland (1918-1939)”. Quarterly Journal Fides et Ratio 42, no. 2 (August 18, 2020): 365–380. Accessed August 8, 2025. https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/294.