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United Nations Environment Programme ,  Forum of Ministers of Environment of Latin America and the Caribbean ,  [Conclusiones y recomendaciones de la Reunión Intersesional del Foro de Ministros de Medio Ambiente de América Latina y el Caribe] ,  [Conclusions and Recommendations of the Intersessional Meeting of the Forum of Ministers of Environment of Latin America and the Caribbean] ,  Conclusions and Recommendations of the Intersessional Meeting of the Forum of Ministers of Environment of Latin America and the Caribbean

United Nations Environment Programme ,  [Daten Zur Umwelt 1988/89] ,  Daten Zur Umwelt 1988/89

United Nations Environment Programme ,  World Meteorological Organization ,  United States Environmental Protection Agency EPA ,  National Oceanic and Atmospheric Administration ,  [Global Atmospheric Background Monitoring for Selected Environmental Parameters: BAPMoN Data Volume I: Atmospheric Aerosol Optical Depth] ,  Global Atmospheric Background Monitoring for Selected Environmental Parameters: BAPMoN Data Volume I: Atmospheric Aerosol Optical Depth

United Nations Environment Programme ,  [Future Data and Knowledge Needs - Global Environment Outlook (GEO-6): Healthy Planet, Healthy People Chapter 25] ,  Future Data and Knowledge Needs - Global Environment Outlook (GEO-6): Healthy Planet, Healthy People Chapter 25

United Nations Environment Programme ,  [The World Environment 1972 - 1982: A Report by The United Nations Environment Programme] ,  The World Environment 1972 - 1982: A Report by The United Nations Environment Programme