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Publisher
- Unesco 19
- Associates for Middle East Research 14
- United Nations 14
- United States. Government Printing Office 14
- Balkema-proceedings and monographs in engineering, water, and earth sciences 13
- United States. Joint Publications Research Service 13
- 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 7
- Food and Agriculture Organization of the United Nations 6
- International Desalination Association 6
- United States. Bureau of Reclamation 6
- World Meteorological Organization 5
- American Society of Civil Engineers 4
- Jerusalem Post Press 4
- Majlis al-Qawmī lil-Takhṭīṭ (Jordan) 4
- Thomas Telford (Firm) 4
- United Nations Development Programme 4