• 45 Wisconsin Historical Society Library
• 40 Geology and Geophysics Library (Leith)
• 22 Memorial Library
• 20 Law Library
• 8 Middleton Shelving Facility
• 7 Steenbock Library
• 5 Wisconsin's Water Library
• 2 Verona Shelving Facility
• 2 WHS State Archives Preservation Facility

• 148 Books
• 7 Journals, Magazines, Newspapers
• 6 Microforms

• 49 Water-supply
• 17 Irrigation
• 17 Law and legislation
• 10 United States. Department of the Interior
• 10 Yakima River Basin Water Enhancement Project
• 8 Hydroelectric power plants
• 8 Reclamation of land
• 7 Columbia Basin Project (U.S.)
• 7 Water quality
• 6 Yakima Project (U.S.)
• 5 Dams
• 5 History
• 5 Stream measurements
• 5 Water
• 5 Water-power
• 5 Water-supply, Rural
• 4 Environmental aspects
• 4 Irrigation projects
• 3 Fishery management
• 3 Government relations
• 3 Recreation areas
• 3 Watershed management
• 3 Wilderness areas
• 2 Feasibility studies

• 56 Geological Survey (U.S.)
• 19 United States
• 12 Grover, Nathan Clifford, 1868-1956
• 9 United States. Bureau of Reclamation. Pacific Northwest Region
• 9 United States. Congress. Senate. Committee on Energy and Natural Resources
• 9 United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Water and Power
• 8 United States. Bureau of Reclamation
• 7 Parker, Glenn L. (Glenn Lane), 1884-1946
• 6 United States. Congress. Senate. Committee on Interior and Insular Affairs. Subcommittee on Water and Power Resources
• 4 Drost, B. W
• 4 Henshaw, Fred F. (Fred Forbes), 1884-1933
• 4 United States. Congress. House. Committee on Interior and Insular Affairs
• 4 United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Water and Power Resources
• 4 United States. Congress. Senate. Committee on Interior and Insular Affairs
• 4 Washington Geological Survey (1911-1921)
• 3 Lamb, W. A. (William Alfred), 1881-
• 3 State of Washington Water Research Center
• 3 United States. (96th, 1st session : 1979)
• 3 United States. Bureau of Reclamation. Upper Columbia Area Office
• 3 United States. Congress. House. Committee on Natural Resources. Subcommittee on Oversight and Investigations
• 3 United States. Congress. Senate. Committee on Interior and Insular Affairs. Subcommittee on Irrigation and Reclamation
• 3 United States. Office of Electric Power Regulation
• 2 Embrey, S. S
• 2 (Fred Forbes), 1884-1933
• 2 Idaho

• 155 English

• 36 Puget Sound
• 33 Northwest, Pacific
• 28 Columbia River
• 26 Pacific Coast (U.S.)
• 18 Yakima River Watershed
• 11 Snake River (Wyo.-Wash.)
• 11 Yakima River
• 9 Oregon
• 9 United States
• 6 Yakima River Watershed (Wash.)
• 5 Columbia River Watershed
• 4 Cascade Range
• 4 Montana
• 3 Grand Coulee Dam (Wash.)
• 3 Pacific Ocean
• 2 Idaho
• 2 Lewis County
• 2 Pacific Northwest
• 2 San Luis Valley (Colo. and N.M.)
• 2 Snake River
• 2 Washington (État)
• 1 Bonneville Dam (Or. and Wash.)
• 1 British Columbia
• 1 Chelan, Lake

Limit year range