BOŁTROMIUK, Artur. Polish Society Facing Idea and Principles of Sustainable Development. Problemy Ekorozwoju, [S. l.], v. 5, n. 2, p. 107–116, 2010. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4751. Acesso em: 22 jul. 2024.