JAŚKIEWICZ, Jacek. Dilemmas for Sustainable Development in Poland. Problemy Ekorozwoju, [S. l.], v. 3, n. 1, p. 33–38, 2008. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4680. Acesso em: 22 jul. 2024.