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Topic
- Water consumption 19
- Irrigation 9
- Agriculture 8
- Technology 7
- Economics 6
- Water quality 5
- Bureaucracy 4
- Groundwater 4
- Saline water conversion 4
- Water-supply 3
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Publisher
- Kollek and Sons Ltd. 2
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- Water Information Center, inc. 1
Decade
- 1970-1979 19