Konstańczak, Stefan. “Moral Duty of Natural Environment Protection According to Priest Professor Tadeusz Ślipko”. Studia Ecologiae et Bioethicae 12, no. 1 (March 31, 2014): 9–28. Accessed May 17, 2024. https://czasopisma.uksw.edu.pl/index.php/seb/article/view/3277.