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United Nations Environment Programme ,  [Workbook for Training in Adopting, Applying and Operating Environmentally Sound Technologies (ESTS) – Regional Workshop] ,  Workbook for Training in Adopting, Applying and Operating Environmentally Sound Technologies (ESTS) – Regional Workshop

United Nations Environment Programme ,  [International Advisory Board of the International Environmental Technology Centre: Eleventh Meeting - Chair’s Summary] ,  International Advisory Board of the International Environmental Technology Centre: Eleventh Meeting - Chair’s Summary

United Nations Environment Programme ,  [Background Paper: Draft Report of the Appropriate technology within the United Nations System - Thematic Joint Programming on Environmentally-Sound and Appropriate Technology Geneva, 23-24 October 1978-] ,  Background Paper: Draft Report of the Appropriate technology within the United Nations System - Thematic Joint Programming on Environmentally-Sound and Appropriate Technology Geneva, 23-24 October 1978-