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151.
An analysis of the changing roles of research in Grand Canyon National Park 1960 - 2010
by Newton, Ronda L., M.A.  Northern Arizona University. 2012: 112 pages; 1518051.
152.
153.
Lead and Copper Contamination in Potable Water: Impacts of Redox Gradients, Water Age, Water Main Pipe Materials and Temperature
by Masters, Sheldon Vaughn, Ph.D.  Virginia Polytechnic Institute and State University. 2015: 146 pages; 10647580.
155.
Conceptual framework to estimate economic feasibility of groundwater banking on agricultural land
by Rodriguez Arellano, Jose Luis, M.S.  University of California, Davis. 2015: 192 pages; 1604062.
156.
Geochemical and Microbial Controls of Groundwater Quality in Northwestern Liberia
by Arno, Zachary, M.S.  University of Nevada, Reno. 2017: 157 pages; 10634173.
158.
Effects of urban development on groundwater flow systems and streamflow generation
by Bhaskar, Aditi Seth, Ph.D.  University of Maryland, Baltimore County. 2013: 196 pages; 3609831.
160.
An integrated geological and geophysical study of the fresh and brackish water boundary in the Hueco Bolson, West Texas
by Marrufo, Sandy Stephanie, M.S.  The University of Texas at El Paso. 2011: 120 pages; 1498302.
162.
Variation in hyporheic exchange with discharge and slope in a tropical mountain stream
by Fabian, Mark W., M.S.  State University of New York College of Environmental Science and Forestry. 2009: 62 pages; 1482174.
164.
Treaty principles and patterns: Negotiations over international rivers
by Dinar, Shlomi, Ph.D.  The Johns Hopkins University. 2009: 452 pages; 3357178.
165.
The influence of glaciers on coastal marine ecosystems in the Gulf of Alaska
by Arimitsu, Mayumi, Ph.D.  University of Alaska Fairbanks. 2016: 171 pages; 10146002.
167.
Sustainable Sanitation Systems: Understanding Priorities, Processes, and Pathways to Success
by Davis, Allison, Ph.D.  University of Colorado at Boulder. 2019: 369 pages; 13813638.
168.
Climate Change Effects and Water Vulnerability in the Molalla Pudding River Basin, Oregon, USA
by Wherry, Susan Amelia, M.S.  Portland State University. 2012: 72 pages; 1529785.
170.
Impacts of Precipitation Sources on Simulated Total Amount of Nutrients in Surface Runoff for Silver Creek Watershed, IL, USA
by Sharma, Sanjita, M.S.  Southern Illinois University at Edwardsville. 2019: 74 pages; 13857280.
173.
A Historical Ecology of the Cache and Putah Creek Alluvial Plain in the Sacramento Valley of California
by Tuil, Jahalel Lee, Ph.D.  University of California, Davis. 2019: 182 pages; 10748570.
174.
Cultural Resource Management and Preservation of Parunuweap Knoll in Zion National Park
by Mackay, Courtney E., M.A.  Northern Arizona University. 2017: 173 pages; 10271965.
177.
The Role of Salmon in Middle Snake River Human Economy: The Hetrick Site in Regional Contexts
by Manning, Cassandra R., M.A.  Portland State University. 2011: 105 pages; 1502144.
178.
Outback Nevada: Public Domain and Environmental Challenge
by Powell, Ryan R., Ph.D.  University of Nevada, Reno. 2017: 323 pages; 10633860.
179.
Contesting social memories and identities in the Zapotec Sierra of Oaxaca, Mexico
by Aquino-Centeno, Salvador, Ph.D.  The University of Arizona. 2009: 217 pages; 3354495.
180.
Nutrient regulation by an omnivore and the effects on performance and distribution
by Pearson, Rachel Estelle Goeriz, Ph.D.  University of Maryland, College Park. 2009: 105 pages; 3372980.
151 - 180 of 39954 displayed.
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