Concepts for national assessment of water availability and use report to Congress.
| Format: | Bog | 
|---|---|
| Sprog: | English | 
| Udgivet: | Reston, Va.
          U.S. Geological Survey
    
        2002. | 
| Serier: | U.S. Geological Survey circular
              1223 | 
| Fag: | 


