Karlstrom K, Crossey L. 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. GS [Internet]. 18 déc. 2019 [cité 17 juill. 2024];46(4):163-9. Disponible à: https://journals.lib.unb.ca/index.php/GC/article/view/29307