Łukomski, Julisław. “Ecology in Religious Education Curricula for the 1st Grade of Lower Secondary School”. Studia Ecologiae et Bioethicae 5, no. 1 (December 31, 2007): 377–390. Accessed November 23, 2024. https://czasopisma.uksw.edu.pl/index.php/seb/article/view/7648.