The problems of biological pest control, some reflezions on regionalization
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| Format: | Texto biblioteca |
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1971
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| Subjects: | ESR CAR, BIOLOGICAL CONTROL, PEST CONTROL, PLANT PROTECTION, RESEARCH, AFRICA SOUTH OF SAHARA, LUTTE BIOLOGIQUE, LUTTE ANTIRAVAGEUR, CONTROL BIOLOGICO, CONTROL DE PLAGAS, PROTECTION DES PLANTES, RECHERCHE, AFRIQUE AU SUD DU SAHARA, PROTECCION DE LAS PLANTAS, INVESTIGACION, AFRICA AL SUR DEL SAHARA, |
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