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1Texto bibliotecaFAO IT
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2Texto bibliotecaFAO IT
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4by Moldenhauer, W.C. (ed.), Soil and Water Conservation Society, Ankeny, IA (USA) eng, Hudson, N.W. (ed.), Sheng, T.C. (ed.), Lee Sanwei (ed.), Chinese Soil and Water Conservation Society, Taipei (Taiwan) eng
Published 1991Texto bibliotecaFAO IT