The introduction and exchange of plant material and the phytosanitary legislation
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| Format: | Texto biblioteca |
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1971
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| Subjects: | QUARANTINE, LEGISLATION, PLANTS, PLANT INTRODUCTION, PLANT PRODUCTION, BOTANY, AFRICA SOUTH OF SAHARA, QUARANTAINE, PLANTE, INTRODUCTION DE PLANTES, CUARENTENA, LEGISLACION, PLANTAS, INTRODUCCION DE PLANTAS, PRODUCTION VEGETALE, BOTANIQUE, AFRIQUE AU SUD DU SAHARA, PRODUCCION VEGETAL, BOTANICA, AFRICA AL SUR DEL SAHARA, |
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