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1Texto bibliotecaFAO IT
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2by International Institute for Aerospace Survey and Earth Sciences, Bocco, Gerardo, Brouwer, Hans de, Karanga, Francisprogramme and meeting document bibliotecaUNESCO
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3
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4by 12717 International Institute for Aerospace Survey and Earth Sciences, Enschede (Países Bajos), 12839 International Soil Science Society, Enschede (Países Bajos), 35734 International Conference on Geo-Information for Sustainable Land Management Enschede (Países Bajos) 17-21 Ago 1997
Published 1997bibliotecaIICA