SKÁLA, P. Do we need environmental ethics?. Envigogika, Praha, Czech Republic, v. 2, n. 1, 2007. DOI: 10.14712/18023061.15. Disponível em: https://envigogika.cuni.cz/index.php/Envigogika/article/view/15. Acesso em: 21 sep. 2020.