Progress report on national reporting and forecasting services for 1967/68.
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| Format: | Texto biblioteca |
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1968
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| Subjects: | INSECT CONTROL, ACRIDIDAE, INFORMATION SERVICES, FORECASTING, RADIO, PLANT PROTECTION, LUTTE ANTIINSECTE, SERVICE D'INFORMATION, TECHNIQUE DE PREVISION, CONTROL DE INSECTOS, SERVICIOS DE INFORMACION, TECNICAS DE PREDICCION, RADIO (MEDIO DE COMUNICACION), PROTECTION DES PLANTES, PROTECCION DE LAS PLANTAS, |
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