MIDDLETON, Gerard V. J.W. Spencer (1851-1921): his Life in Canada, and his Work on Preglacial River Valleys. Geoscience Canada, [S. l.], v. 31, n. 2, 2004. Disponível em: https://journals.lib.unb.ca/index.php/GC/article/view/2750. Acesso em: 19 apr. 2024.