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Donor
- Naff, Thomas 71
Topic
- Groundwater 71
- Aquifers 27
- Hydrology 25
- Politics and government 22
- Water quality 22
- Agriculture 19
- Technology 19
- Watersheds 19
- Economics 16
- Resource allocation 13
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Publisher
- Unesco 3
- Balkema-proceedings and monographs in engineering, water, and earth sciences 2
- Israel/Palestine Center for Research and Information 2
- World Bank 2
- Al-Hayat Printing & Publishing House 1
- American Academy of Arts and Sciences 1
- Arab Centre for the Studies of Arid Zones and Dry Lands 1
- Bayerische Julius-Maximilians-Universität Würzburg 1
- California. Department of Water Resources 1
- Computational Mechanics Publications 1
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Decade
- 1990-1999 71