Papers presented at the conference on agricultural development - Bellagio, Italy, 23-25 Apr 1969.
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Format: | Texto biblioteca |
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1969
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Subjects: | AGRICULTURAL DEVELOPMENT, WORLD, PRODUCTION POSSIBILITIES, PRODUCTION, YIELDS, VARIETIES, DEVELOPPEMENT AGRICOLE, DESARROLLO AGRICOLA, MONDE, POSSIBILITE DE PRODUCTION, RENDEMENT, VARIETE, MUNDO, PRODUCCION POTENCIAL, PRODUCCION, RENDIMIENTO, VARIEDADES, |
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