BORYS, Tadeusz. Sustainable Development – How to Recognize Integrated Order. Problemy Ekorozwoju, [S. l.], v. 6, n. 2, p. 75–81, 2011. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4784. Acesso em: 3 jul. 2024.