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Donor
- Naff, Thomas 308
- Kolars, John F. 1
Topic
- Watersheds 324
- Groundwater 137
- Irrigation 101
- Hydrology 100
- Agriculture 89
- Water quality 64
- Aquifers 62
- Precipitation (Meteorology) 58
- Climate 57
- Technology 45
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Publisher
- Food and Agriculture Organization of the United Nations 32
- Unesco 13
- United Nations 13
- United States. Government Printing Office 10
- Balkema-proceedings and monographs in engineering, water, and earth sciences 9
- Pergamon Press (Oxford, England) 9
- Associates for Middle East Research 8
- United States. Joint Publications Research Service 8
- United Nations Development Programme 6
- Arab Centre for the Studies of Arid Zones and Dry Lands 5
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Format
- application/pdf 323
- image/tiff 1