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Publisher
- Associates for Middle East Research 24
- Unesco 21
- United States. Joint Publications Research Service 18
- United Nations 16
- United States. Government Printing Office 14
- Balkema-proceedings and monographs in engineering, water, and earth sciences 13
- Food and Agriculture Organization of the United Nations 12
- United Nations Development Programme 11
- Geological Survey (U.S.). National Mapping Division 10
- International Water Resources Association 10
- Geological Survey (U.S.) 9
- Pergamon Press (Oxford, England) 9
- World Bank 8
- Lebanon. Maṣlaḥah al-Waṭanīyah li-Nahr al-Līṭānī 7
- International Desalination Association 6
- United States. Bureau of Reclamation 6
- Tikhnun ha-mayim le-Yiśraʼel be-ʻe.m. 5
- World Meteorological Organization 5
- American Society of Civil Engineers 4
- Arab Centre for the Studies of Arid Zones and Dry Lands 4
