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United Nations Environment Programme ,  Food and Agriculture Organization of the United Nations ,  Senegal ,  [Inventory and Monitoring of Sahelian Pastoral Ecosystems Annex 7: Woody Vegetation in the Sahel - GEMS Sahel Series No. 7] ,  Inventory and Monitoring of Sahelian Pastoral Ecosystems Annex 7: Woody Vegetation in the Sahel - GEMS Sahel Series No. 7

United Nations Environment Programme ,  Food and Agriculture Organization of the United Nations ,  [The Ecological Management of Arid and Semi-Arid Rangelands in Africa and the Near and Middle East (EMASAR - Phase II) - Volume V: Grassland Education and Training] ,  The Ecological Management of Arid and Semi-Arid Rangelands in Africa and the Near and Middle East (EMASAR - Phase II) - Volume V: Grassland Education and Training

United Nations Environment Programme ,  Food and Agriculture Organization of the United Nations ,  [Amenagement écologique des paturages arides et semi-arides d'Afrique, du Proche et du Moyen Orient (EMASAR - Phase II). Volume 3: Plantes fourragères spontanees de l'Afrique tropicale sèche - Données techniques] ,  Amenagement écologique des paturages arides et semi-arides d'Afrique, du Proche et du Moyen Orient (EMASAR - Phase II). Volume 3: Plantes fourragères spontanees de l'Afrique tropicale sèche - Données techniques