KEEN, M. J. Presidential Address to the Geological Association of Canada, Waterloo, Ontario The Earth Sciences in Canada 1975. Geoscience Canada, [S. l.], v. 2, n. 3, 1975. Disponível em: https://journals.lib.unb.ca/index.php/GC/article/view/2931. Acesso em: 18 apr. 2024.