Formation et information dans le developpement de l'emploi des engrais
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| Main Authors: | , , , |
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| Format: | Texto biblioteca |
| Language: | |
| Published: |
1977
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| Subjects: | FAO DANIDA, EXTENSION ACTIVITIES, TRAINING, FERTILIZERS, VULGARISATION, FORMATION, ENGRAIS, EXTENSION, CAPACITACION, ABONOS, |
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