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Donor
- Kolars, John F. 18
Topic
- Agriculture 18
- Irrigation 7
- Economics 4
- Politics and government 4
- Güneydoğu Anadolu Projesi (Turkey) 3
- Rivers 2
- Technology 2
- Africa, North 1
- Arid regions 1
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Rights
- In Copyright 18
Publisher
- Food and Agriculture Organization of the United Nations 2
- International Water Resources Association 1
- Jāmiʻat al-Iskandarīyah 1
- Matrix Group Publishing Incorporated 1
- United States. Congress. Office of Technology Assessment 1
- University Microfilms International 1
- University of Durham. Centre for Middle Eastern and Islamic Studies 1