Enlace original:
https://wedocs.unep.org//handle/20.500.11822/30115
United Nations Environment Programme
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Food and Agriculture Organization of the United Nations
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[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]
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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