Wolter, Edyta. “Education for Ecological Bonds With Nature and Care about Its Protection in the Republic of Poland in the Period Between the Wars (1918-1939)”. Quarterly Journal Fides et Ratio 38, no. 2 (June 30, 2019): 145–159. Accessed August 9, 2025. https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/65.