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	1.	Damming Grand Canyon [electronic resource] : the 1923 USGS Colorado River expedition / Diane E. Boyer and Robert H. Webb ; U.S. Geological Survey ; foreword by Michael Collier. by Boyer, Diane E Webb, Robert H Geological Survey (U.S.) ebrary, Inc Material type: Text; Format: electronic available online ; Nature of contents: ; Literary form: Not fiction Publication details: Logan, Utah : Utah State University Press, c2007 Online resources: An electronic book accessible through the World Wide Web; click to view Availability: No items available. Save to lists Add to cart (remove)
	2.	Damming Grand Canyon : The 1923 USGS Colorado River Expedition / Diane E. Boyer and Robert H. Webb ; U.S. Geological Survey ; foreword by Michael Collier. by Boyer, Diane E Webb, Robert H Geological Survey (U.S.) Project Muse [distributor] Series: Book collections on Project MUSE Material type: Text; Format: available online ; Literary form: Not fiction Publisher: Logan, Utah : Utah State University Press, 2007Manufacturer: Baltimore, Md. : Project MUSE, 2012Copyright date: ©2007 Online resources: Full text available: Availability: No items available. Save to lists Add to cart (remove)

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