KARLSTROM, Karl; CROSSEY, Laura. Classic Rock Tours 3. Grand Canyon Geology, One Hundred and Fifty Years after John Wesley Powell: A Geology Guide for Visiting the South Rim of Grand Canyon National Park. Geoscience Canada, [S. l.], v. 46, n. 4, p. 163–193, 2019. DOI: 10.12789/geocanj.2019.46.153. Disponível em: https://journals.lib.unb.ca/index.php/GC/article/view/29307. Acesso em: 28 mar. 2024.