Books

1. The Emergence of a Global Agricultural Research System: The Role of the Agricultural Research and Extension Group (Esdar) (Environmentally Sustainable ... Research and Extension Group Report, No 1)
   

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2. Quarantine for Seed (FAO plant production and protection paper)
   

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3. L'Agriculture biologique, une réponse? (Les Cahiers de l'écologie)
   

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4. Trees, Crops and Soil Fertility: Concepts and Research Methods
   

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5. Iron, Siderophores, and Plant Diseases (Nato a S I Series Series a, Life Sciences)
   

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Books