Participatory development of agricultural innovations:Procedures and methods of on-farm research
Autor principal: | Werner, J. |
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Formato: | Libro |
Lenguaje: | English |
Publicado: |
Eschborn (Alemania) :
,
1993
|
Colección: | Schriftenreihe der GTZ (Alemania)
|
Materias: |
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