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1Water scarcity and degradation in the Rio San Juan Watershed of Northeastern Mexico Water scarcity and degradation in the Rio San Juan Watershed of Northeastern MexicoSubjects: “...Utilización del agua...”
Texto bibliotecaECOSUR -
2Subjects: “...Calidad del agua...”
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3More water for arid lands promising technologies and research opportunities More water for arid lands promising technologies and research opportunitiesby Board on Science and Technology for International Development (Washington) Advisory Committee on Technology InnovationSubjects: “...Conservación del agua...”
Published 1974
Texto bibliotecaECOSUR