ENVIGOGIKA, R. Report on 4th International Environmental Education. Envigogika, Praha, Czech Republic, v. 2, n. 3, 2007. DOI: 10.14712/18023061.368. Disponível em: https://www.envigogika.cuni.cz/index.php/Envigogika/article/view/368. Acesso em: 16 dub. 2024.