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Topic
- Contamination of environment 3
- Groundwater 2
- Water quality 2
- Aquifers 1
- Armed Forces 1
- Bureaucracy 1
- Irrigation 1
- Lakes 1
- Precipitation (Meteorology) 1
- Recycling 1
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Publisher
- Nadwah al-Waṭanīyah lil-Miyāh (1978 : Amman, Jordan) 3
Repository
- Oregon State University. Libraries 3