Author
United States. Bureau of Reclamation
13
Arizona,
12
California,
12
United States. Supreme Court
12
United States. Bureau of Reclamation,
6
United States. Congress. House. Committee on Rules,
5
NetLibrary, Inc
4
Powell, John Wesley, 1834-1902
4
United States,
4
Carter, Nicole T.,
3
Follansbee, Robert, 1879-1952,
3
Leake, S. A.,
3
Loeltz, O. J. 1914-
3
National Research Council (U.S.). Committee to Review the Glen Canyon Environmental Studies
3
Nevada,
3
New Mexico,
3
Northern Arizona University
3
Smithsonian Institution
3
United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Water and Power,
3
Utah,
3
Ward, Evan R. 1971-
3
Adams, Eilean, 1923-
2
Argonne National Laboratory,
2
Colorado River Board of California,
2
Coues, Elliott, 1842-1899
2
Dunar, Andrew J.
2
Duncan, Ben,
2
Eddy, Clyde, 1889-1954
2
Ely, Northcutt, 1903-1997,
2
Goode, G. Brown 1851-1896
2
Green Planet Films
2
Johnson, Martin (Documentary film director),
2
Kennedy, Theodore A.,
2
Madsen, Steven K.,
2
McBride, Dennis
2
Mulligan, Stephen P.,
2
National Research Council (U.S.). Committee on Grand Canyon Monitoring and Research
2
Rifkind, Simon H. 1901-1995,
2
Scott, Dougray, 1965-
2
Seelke, Clare Ribando,
2
U.S. Fish and Wildlife Service
2
United States. Congress. House. Committee on Natural Resources. Subcommittee on Water, Oceans, and Wildlife,
2
United States. Congress. Senate. Committee on Interior and Insular Affairs. Subcommittee on Water and Power Resources,
2
United States. Congress. Senate. Committee on Irrigation and Reclamation,
2
United States. Department of the Interior
2
Webb, Robert H.
2
Wilbur, Ray L. 1875-1949,
2
Worster, Donald, 1941-
2
Adler, Robert W., 1955-
1
American Geophysical Union
1
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