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Topic
- Groundwater 6
- Irrigation 6
- Economics 5
- Agriculture 4
- Hydrology 4
- Politics and government 4
- Bibliography 3
- Watersheds 3
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Language
- English 12
Publisher
- United States. Government Printing Office 2
- Arab Centre for the Studies of Arid Zones and Dry Lands 1
- Associates for Middle East Research 1
- Irrigation Support Project for Asia and the Near East 1
- Middle East Economic Digest Ltd. 1
- Unesco. Regional Office for Science and Technology in the Arab States 1
- University of Durham. Centre for Middle Eastern and Islamic Studies 1
- University of London. School of Oriental and African Studies 1
Institution
- Oregon State University 12