GAWOR, Leszek. Sustainable Development in the Context of Our Philosophy of History. Problemy Ekorozwoju, [S. l.], v. 2, n. 2, p. 19–25, 2007. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4634. Acesso em: 25 aug. 2024.