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1by Abdulla, H.H. (ed.), Ministry of Agriculture and Irrigation, Khartoum (Sudan). Soil Survey Administration eng, International Soil Classification Workshop eng 2-11 Nov 1982 5 Khartoum (Sudan), Ali, M.A. (ed.), Beinroth, F.H. (ed.), Eswaran, H. (ed.), Osman, A. (ed.)
Published 1985Texto bibliotecaFAO IT