General introduction - Locusts and grasshoppers, and their economic importance.
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| Format: | Texto biblioteca |
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1963
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| Subjects: | ECONOMIC SITUATION, ACRIDIDAE, INFESTATION, INSECT CONTROL, INDIA, INTERNATIONAL COOPERATION, RESEARCH, SCHISTOCERCA GREGARIA, GEOGRAPHICAL DISTRIBUTION, ECONOMICS, SITUATION ECONOMIQUE, SITUACION ECONOMICA, LUTTE ANTIINSECTE, INDE, COOPERATION INTERNATIONALE, RECHERCHE, DISTRIBUTION GEOGRAPHIQUE, ECONOMIE, INFESTACION, CONTROL DE INSECTOS, COOPERACION INTERNACIONAL, INVESTIGACION, DISTRIBUCION GEOGRAFICA, ECONOMIA, |
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