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Damming Grand Canyon :

Boyer, Diane E;Webb, Robert H.

The 1923 USGS Colorado River Expedition / Damming Grand Canyon : - University Press of Colorado, 2007

9780874216608 978-0-87421-665-3


History
HISTORY / General,HISTORY / United States / 20th Century,HISTORY / United States / State & Local / Southwest (AZ, NM, OK, TX)