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Donor
- Naff, Thomas 20
Topic
- Building 20
- Irrigation 8
- Dams 7
- Economics 5
- Agriculture 4
- Reservoirs 4
- Finance 3
- Hydrology 3
- Politics and government 3
- Precipitation (Meteorology) 3
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Publisher
- American University (Washington, D.C.) 1
- Arab Report and Record 1
- Asian Institute of Technology 1
- Christian Science Publishing Society 1
- Energiia 1
- Harya Overseas Engineering Co. 1
- Izdatelʹstvo politicheskoĭ literatury 1
- Meḳorot, ḥevrat mayim 1
- Office arabe de presse et de documentation 1
- Plenum Publishing Corporation 1
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Decade
- 1970-1979 20