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United Nations Environment Programme ,  [Environmental Aspects of the Petroleum Industry: An Overview] ,  Environmental Aspects of the Petroleum Industry: An Overview

United Nations Environment Programme ,  [Guidelines for Framework Legislation for Integrated Waste Management] ,  Guidelines for Framework Legislation for Integrated Waste Management

United Nations Environment Programme ,  International Resource Panel ,  [Environmental Risks and Challenges of Anthropogenic Metals Flows and Cycles] ,  Environmental Risks and Challenges of Anthropogenic Metals Flows and Cycles