STEYN, P.; WESSELS, A. Environmental non-governmental contributions to the global environmental movement, 1962-1992. Southern Journal for Contemporary History, [S. l.], v. 24, n. 2, p. 96–113, 2019. DOI: 10.38140/sjch.v24i2.4113. Disponível em: https://journals.ufs.ac.za/index.php/jch/article/view/4113. Acesso em: 9 dec. 2024.