Appropriate technology for water supply and sanitation. Volume 1, technical and economic options
Furkejuvvon:
| Materiálatiipa: | Girji |
|---|---|
| Giella: | English |
| Almmustuhtton: |
Washington, D.C. : Transportation, Water, and Telecommunications Dept., World Bank,
c1980.
|
| Ráidu: | Appropriate technology for water supply and sanitation ; v. 1.
|
| Fáddágilkorat: |
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