Limit your search
Donor
- Naff, Thomas 91
Topic
- Groundwater 91
- Irrigation 36
- Agriculture 29
- Hydrology 22
- Technology 22
- Watersheds 21
- Aquifers 18
- Water quality 16
- Economics 14
- Politics and government 13
- more »
Publisher
- United States. Joint Publications Research Service 12
- Middle East Economic Digest Ltd. 4
- United Nations 4
- Pergamon Press (Oxford, England) 3
- Unesco 3
- United Nations Development Programme 3
- World Bank 3
- IPC Magazines, Ltd. 2
- American Society of Civil Engineers 1
- Arab Centre for the Studies of Arid Zones and Dry Lands 1
- more »
Repository
- Oregon State University. Libraries 91