National reporting and forecasting service - Visits to England and Saudi Arabia, Dec 1962 - Jan 1963.
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| Format: | Texto biblioteca |
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1963
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| Subjects: | INSECT CONTROL, ACRIDIDAE, FORECASTING, PEST SURVEYS, RESEARCH INSTITUTIONS, LUTTE ANTIINSECTE, TECHNIQUE DE PREVISION, ENQUETE ORGANISMES NUISIBLES, CONTROL DE INSECTOS, TECNICAS DE PREDICCION, ENCUESTAS SOBRE PLAGAS, INSTITUTION DE RECHERCHE, INSTITUCIONES DE INVESTIGACION, |
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