Author
Geological Survey (U.S.)
927
Geological Survey (U.S.),
702
SpringerLink (Online service)
114
Colorado Water Conservation Board
91
United States. Bureau of Reclamation
51
Infobase,
48
Films for the Humanities & Sciences (Firm)
31
Infobase
31
United States. Soil Conservation Service
30
Geological Survey (U.S.). Water Resources Division
26
Prakken, Lawrence B.,
25
Wells, J. V. B.
23
Colorado Water Resources Research Institute
22
Colorado. Office of the State Engineer
21
Library of Congress. Congressional Research Service,
21
ScienceDirect (Online service)
21
Colorado. Division of Water Resources
20
Lohr, E. W. 1897-
20
Louisiana. Department of Transportation and Development
20
Southwest Florida Water Management District (Fla.)
19
Louisiana. Department of Transportation and Development,
18
United States. Congress. Senate. Committee on Energy and Natural Resources
18
Love, S. K. 1903-1995
16
National Water-Quality Assessment Program (U.S.)
16
United States. Bureau of Land Management
16
United States. Congress. House. Committee on Resources. Subcommittee on Water and Power
15
New Jersey. Department of Environmental Protection
14
South Dakota Geological Survey
14
United States. Army. Corps of Engineers
14
United States. Congress. Senate. Committee on Interior and Insular Affairs
13
United States. Environmental Protection Agency
13
California. State Water Resources Control Board,
12
Hendricks, E. L. 1909-
12
New York (State). Department of Environmental Conservation
12
Stern, Charles V.,
12
U.S. Fish and Wildlife Service
12
United States. Bureau of Indian Affairs
12
United States. Congress. Senate. Select Committee on National Water Resources
12
White, Vincent E.,
12
United States. Environmental Protection Agency. Office of Water
11
Wyoming. State Engineer's Office
11
California. State Water Resources Control Board
10
Fram, Miranda S.
10
Meinzer, Oscar Edward, 1876-1948
10
New Mexico. State Engineer Office
10
Price, Don, 1929-
10
Public Broadcasting Service (U.S.)
10
Belitz, Kenneth,
9
Camp, Dresser & McKee
9
Minnesota. Department of Natural Resources
9
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