HENS , L. Concepts and trends in environmental education for sustainable development . Studia Ecologiae et Bioethicae, [S. l.], v. 2, n. 1, p. 561–573, 2004. DOI: 10.21697/seb.2004.2.1.33. Disponível em: https://czasopisma.uksw.edu.pl/index.php/seb/article/view/6855. Acesso em: 22 nov. 2024.