• 64 Geology and Geophysics Library (Leith)
• 50 Memorial Library
• 1 Map Library (Robinson)

• 132 Books
• 4 Maps, Atlases
• 2 Journals, Magazines, Newspapers

• 70 Water quality
• 22 Water resources development
• 15 Groundwater
• 8 Stream measurements
• 6 Geology
• 6 Hydrology
• 4 Water
• 3 Groundwater flow
• 3 Quality
• 2 Borings
• 2 Composition
• 2 Groundwater recharge
• 2 Hydrogeology
• 2 Management
• 2 Rivers
• 2 Water use
• 2 Water-power
• 1 Agricultural experiment stations
• 1 Algae
• 1 Analysis
• 1 Aquifers
• 1 Artificial groundwater recharge
• 1 Computer simulation
• 1 Environmental mapping

• 15 Grover, Nathan Clifford, 1868-1956
• 15 Parker, Glenn L. (Glenn Lane), 1884-1946
• 10 Canfield, G. H.
• 9 Oregon. State Engineer
• 8 Oregon
• 8 Washington (State)
• 5 Wells, J. V. B.
• 4 Henshaw, Fred F. (Fred Forbes), 1884-1933
• 4 Utah
• 3 Douglas County (Or.)
• 3 Frank, F. J
• 3 Geological Survey (U.S.). Surface Water Branch
• 2 Burns, Erick R.
• 2 California
• 2 Collins, C. A. (Charles Alexander), 1944-
• 2 Foxworthy, B. L. (Bruce LaVerne), 1925-
• 2 (Fred Forbes), 1884-1933
• 2 Idaho
• 2 Love, S. K. (Samuel Kenneth), 1903-1995
• 2 Nevada
• 2 New Mexico
• 2 Paulsen, Carl G.
• 2 Robison, J. H
• 2 United States. Bureau of Reclamation

• 138 English

• 65 Columbia River Watershed
• 54 United States
• 39 Pacific Coast
• 20 Columbia River
• 20 Northwest, Pacific
• 14 Pacific Coast (U.S.)
• 7 Washington (State)
• 5 Snake River Watershed (Wyo.-Wash.)
• 4 California
• 3 Willamette River Valley
• 2 Colorado River (Colo.-Mexico)
• 2 Colorado River Watershed
• 2 Colorado River Watershed (Colo.-Mexico)
• 2 Douglas County
• 2 Idaho
• 2 Lower Columbia River Watershed (Or. and Wash.)
• 2 North America
• 2 Snake River Watershed
• 2 West (U.S.)
• 2 West United States
• 1 California, Southern
• 1 Clackamas River
• 1 Columbia Plateau
• 1 Dalles Region

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