Farmers are engineers : indigenous soil and water conservation practices in a participatory watershed development programme
P.D.Premkumar ; edited by: Blaise Humbert-Droz
Bok Engelsk 1994 P.D. Prem Kumar
| Utgitt | Bangalore : Swiss Development Cooperation , 1994
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|---|---|
| Omfang | 40 s. : ill.
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| Emner |
