Training and improving professional skill of workers employed in production of chemical fertilizers.
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| Format: | Texto biblioteca |
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1965
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| Subjects: | FERTILIZERS, WORKERS, TRAINING, AGRICULTURAL SECTOR, PRODUCTION DATA, ENGRAIS, TRAVAILLEUR, FORMATION, ABONOS, OBREROS, CAPACITACION, SECTEUR AGRICOLE, DONNEE DE PRODUCTION, SECTOR AGRARIO, DATOS DE PRODUCCION, |
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