197066
9780142437520
John Wesley Powell (1834-1902) was a professor of geology and director of the U.S. Geological Survey. Wallace Stegner (1909-1993) was the author of numerous works of fiction and non-fiction, including the National Book Award-winning The Spectator Birdand Angle of Repose, which won the Pulitzer Prize.Powell, John Wesley is the author of 'Exploration of the Colorado River and Its Canyons' with ISBN 9780142437520 and ISBN 0142437522.
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