Farming systems research and development : guidelines for development countires /
Autor principal: | Shaner, W. W. |
---|---|
Otros Autores: | Philipp, P. F., Schmehl, W. R. |
Formato: | Libro |
Lenguaje: | Spanish |
Publicado: |
[S.l.] :
Boulder, Col. : Westriew Press ,
1982
|
Materias: |
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