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United Nations Environment Programme ,  [Report of the Expert Group Meeting Towards the Design for a Meta-Database for the Harmonization of Environmental Measurement : GEMS Report Series No. 10] ,  Report of the Expert Group Meeting Towards the Design for a Meta-Database for the Harmonization of Environmental Measurement : GEMS Report Series No. 10

United Nations Environment Programme ,  [Emission Standards & Guidelines Information Clearinghouse (IE-ESGIC) Volume I: Textile Industry Effluent Discharge Standards] ,  Emission Standards & Guidelines Information Clearinghouse (IE-ESGIC) Volume I: Textile Industry Effluent Discharge Standards

United Nations Environment Programme ,  The International Hotel Association (IHA) ,  The International Hotels Environment Initiative (IHEI) ,  [Environmental Action Pack for Hotels: Practical Steps to Benefit your Business and the Environment - UNEP Industry and Environment Technical Report No. 31] ,  Environmental Action Pack for Hotels: Practical Steps to Benefit your Business and the Environment - UNEP Industry and Environment Technical Report No. 31

United Nations Environment Programme ,  [Environmental Guidelines for Pulp and Paper Industry: A Technical Review. UNEP Environmental Management Guidelines No. 4] ,  Environmental Guidelines for Pulp and Paper Industry: A Technical Review. UNEP Environmental Management Guidelines No. 4