Wolter, Edyta. “Development of children’s Ecological Awareness in ‘Płomyk’ in the II Republic of Poland”. Quarterly Journal Fides et Ratio 34, no. 2 (June 30, 2018): 74–90. Accessed August 25, 2025. https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/515.