Assignment in Mexico, Central America and Panama relating to a study of and recommendations concerning activities in the field of plant protection.
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Format: | Texto biblioteca |
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1954
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Subjects: | PLANT PROTECTION, INTERNATIONAL ORGANIZATIONS, PLANT PRODUCTION, ANIMAL PRODUCTION, REGULATIONS, PROTECTION DES PLANTES, PROTECCION DE LAS PLANTAS, ORGANISATION INTERNATIONALE, PRODUCTION VEGETALE, PRODUCTION ANIMALE, REGLEMENTATION, ORGANIZACIONES INTERNACIONALES, PRODUCCION VEGETAL, PRODUCCION ANIMAL, REGLAMENTACIONES, |
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