GGrand Canyon ExpeditionGrand Canyon Expeditionde John Wesley PowellEdiciones (1)Grand Canyon Expedition (2019)Gibbs Smith, Publisher · inglés · ISBN 9781423651673Más obras de John Wesley PowellMMythologic PhilosophyMythologic PhilosophyCCanyons of the ColoradoCanyons of the ColoradoSSelected Prose of John Wesley PowellSelected Prose of John Wesley Powell
TThe Exploration Of The Colorado River and It's CanyonsThe Exploration Of The Colorado River and It's Canyons