Exchange and advisory visits - Exchange visits to Morocco, West Africa, East Africa, Ethiopia and Sudan - Nov 1961 - Jan 1962.
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| Format: | Texto biblioteca |
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1963
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| Subjects: | INSECT CONTROL, ACRIDIDAE, LOCUSTA, ANIMAL POPULATION, AIRCRAFT, INSECTICIDES, LUTTE ANTIINSECTE, CONTROL DE INSECTOS, POPULATION ANIMALE, AERONEF, INSECTICIDE, POBLACION ANIMAL, AERONAVES, INSECTICIDAS, |
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