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1Desertification; associated case studies prepared for the United Nations Conference on Desertification Desertification; associated case studies prepared for the United Nations Conference on Desertificationby Biswas, M.R. (ed.), UN Conference on Desertification eng 29 Aug 1977 1. Nairobi (Kenya), Biswas, A.K. (ed.)
Published 1980Texto bibliotecaFAO IT