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United Nations Environment Programme ,  [Promoting resource efficiency in small and medium sized enterprises: industrial training handbook] ,  Promoting resource efficiency in small and medium sized enterprises: industrial training handbook

United Nations Environment Programme ,  GRID-Arendal ,  [Planet in peril: Atlas of current threats to people and the environment] ,  Planet in peril: Atlas of current threats to people and the environment

United Nations Environment Programme ,  [Handbook for the Montreal Protocol on Substances that Deplete the Ozone Layer - Eighth edition (2009)] ,  Handbook for the Montreal Protocol on Substances that Deplete the Ozone Layer - Eighth edition (2009)