Extension o comunicacion.
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Format: | Texto biblioteca |
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1969
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Subjects: | EXTENSION ACTIVITIES, EDUCATION, RURAL AREAS, DIFFUSION OF INFORMATION, AGRARIAN REFORM, RURAL DEVELOPMENT, VULGARISATION, EXTENSION, ZONE RURALE, DIFFUSION DE L'INFORMATION, REFORME AGRAIRE, DEVELOPPEMENT RURAL, EDUCACION, ZONAS RURALES, DIFUSION DE INFORMACION, REFORMA AGRARIA, DESARROLLO RURAL, |
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