DOŁĘGA, Józef M. Ecophilosophy – a Science for the 21st Century. Problemy Ekorozwoju, [S. l.], v. 1, n. 1, p. 17–22, 2006. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4626. Acesso em: 22 jul. 2024.