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1by Virginia Polytechnic Inst. and State Univ., Blacksburg (USA). Crop and Soil Environmental Sciences Dept. eng, Soil Conservation Service, Washington, DC (USA). Soil Management Support Services eng 32829, Agency for International Development, Washington, DC (USA) eng
Published 1990Texto bibliotecaFAO IT -
2by Virginia Polytechnic Inst. and State Univ., Blacksburg (USA). Crop and Soil Environmental Sciences Dept. eng, Application of Geographic Information Systems, Simulation Models, and Knowledge-based Systems for Landuse Management eng 12-14 Nov 1990 Blacksburg, VA (USA)
Published 1990Texto bibliotecaFAO IT