ZACHER, Lech W. Sustainable Development – Utopia or Real Possibility?. Problemy Ekorozwoju, [S. l.], v. 3, n. 2, p. 63–68, 2008. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4662. Acesso em: 22 nov. 2024.