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Topic
- Water quality 86
- Agriculture 28
- Groundwater 26
- Irrigation 26
- Technology 21
- Contamination of environment 17
- Watersheds 16
- Sewage 10
- Water-supply 10
- Hydrology 9
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Water Basin
- Jordan River >> Israel 32
- River Nile >> Sudan 13
- Tigris River >> Basra Governorate >> Iraq 4
- Euphrates River >> Basra Governorate >> Iraq 3
- Meuse >> Netherlands 3
- Rhine River >> Netherlands 3
- Rhine-Meuse 3
- Saint Lawrence River >> Franklin County >> New York >> United States 3
- St. Lawrence 3
- Colorado River 2
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Language
- English 86
Publisher
- Food and Agriculture Organization of the United Nations 9
- Pergamon Press (Oxford, England) 7
- International Law Association 3
- Jordan. Sulṭat al-Maṣādir al-Ṭabīʻīyah 3
- Nadwah al-Waṭanīyah lil-Miyāh (1978 : Amman, Jordan) 3
- United Nations Development Programme 3
- International Commission on Irrigation and Drainage 2
- International Water Resources Association 2
- Kollek and Sons Ltd. 2
- Robert S. Kerr Environmental Research Laboratory 2
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Decade
- 1970-1979 86