Extension in the Andes an evaluation of official U.S. assistance to agricultural extension services in Central and South America
| Príomhchruthaitheoir: | |
|---|---|
| Formáid: | LEABHAR |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
Cambridge, Mass.
MIT Press
1974.
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| Ábhair: |