Author
NetLibrary, Inc
32
Twain, Mark, 1835-1910
29
Grover, Nathan Clifford, 1868-1956,
23
Lewis, Meriwether, 1774-1809
19
JSTOR (Organization)
16
Clark, William, 1770-1838
15
Geological Survey (U.S.),
13
Huizinga, Richard J.,
11
United States. Army. Corps of Engineers
11
Missouri. Department of Natural Resources
10
United States. General Accounting Office,
10
Wyoming
10
Heimann, David C.,
9
Kansas
9
Lamb, W. A. 1881-
9
Missouri
9
Missouri. Department of Transportation
9
Missouri. Division of Geological Survey and Water Resources,
9
Montana
9
Nebraska
9
Staack, J. G. 1878-
9
American Philosophical Society. Library
8
Floyd, Charles, -1804
8
Jacobson, Robert B.,
8
Lewis and Clark Expedition
8
Missouri Council on Women's Economic Development and Training
8
Thwaites, Reuben Gold, 1853-1913
8
United States. Congress. House. Committee on Resources
8
United States. Congress. Senate. Committee on Environment and Public Works,
8
United States. National Park Service
8
Whitehouse, Joseph
8
Follansbee, Robert, 1879-1952,
7
MacBride, Roger Lea, 1929-
7
United States. Congress. Senate. Committee on Energy and Natural Resources
7
United States. Congress. Senate. Committee on Indian Affairs (1993- ),
7
Colorado
6
Geological Survey (U.S.)
6
Imes, Jeffrey L.,
6
Iowa
6
Missouri. Division of Environmental Quality
6
North Dakota
6
Southard, Rodney E.,
6
Stepenoff, Bonnie, 1949-
6
United States. Congress. Senate. Committee on Energy and Natural Resources,
6
United States. Congress. Senate. Committee on Interior and Insular Affairs. Subcommittee on Energy Research and Water Resources,
6
United States. Congress. Senate. Committee on Interior and Insular Affairs. Subcommittee on Water and Power Resources,
6
Barr, Miya N.,
5
Clark, William, 1770-1838,
5
Ekberg, Carl J.
5
Kleeschulte, Michael J.,
5
more ...