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Creator
- United Nations 11
- United Nations. Economic and Social Commission for Western Asia 8
- United Nations. Department of Technical Cooperation for Development 3
- Egypt. Wizārat al-Rayy 2
- El-Sawaby, M. S. 2
- Zikri, B. S. 2
- Al-Kawaz, Ghazi Majeed 1
- Azar, N. 1
- Badry, Muwafaq M. 1
- Blum, Yehuda Zvi, 1931- 1
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Topic
- Irrigation 18
- Agriculture 14
- Groundwater 12
- Hydrology 11
- Politics and government 11
- Water-supply 9
- Water quality 8
- Economics 7
- Water consumption 7
- Aquifers 6
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Publisher
- United Nations 50
Institution
- Oregon State University 50
Decade
- 1980-1989 50
