Aircraft against locusts.
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Format: | Texto biblioteca |
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1949
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Subjects: | SPRAYING, INSECTICIDES, INSECT CONTROL, ACRIDIDAE, AERIAL APPLICATION, EXPERIMENTATION, PULVERISATION, INSECTICIDE, LUTTE ANTIINSECTE, EPANDAGE AERIEN, PULVERIZACION, INSECTICIDAS, CONTROL DE INSECTOS, APLICACION AEREA, EXPERIMENTACION, |
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