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United Nations Environment Programme ,  International Sustainability Unit ,  International Coral Reef Initiative ,  [The Coral Reef Economy: The Business Case for Investment in the Protection, Preservation and Enhancement of Coral Reef Health - Executive Summary] ,  The Coral Reef Economy: The Business Case for Investment in the Protection, Preservation and Enhancement of Coral Reef Health - Executive Summary

United Nations Environment Programme ,  [Environmental Guidelines for Watershed Development - UNEP Environmental Management Guidelines, No. 3] ,  Environmental Guidelines for Watershed Development - UNEP Environmental Management Guidelines, No. 3

United Nations Environment Programme ,  [Desertification Control Bulletin Number 29, 1996: A Bulletin of World Events in the Control of Desertification Restoration of Degraded Lands and Reforestation] ,  Desertification Control Bulletin Number 29, 1996: A Bulletin of World Events in the Control of Desertification Restoration of Degraded Lands and Reforestation

United Nations Environment Programme ,  [Desertification Control Bulletin: A Bulletin of World Events in the Control of Desertification Restoration of Degraded Lands and Reforestation Number 25] ,  Desertification Control Bulletin: A Bulletin of World Events in the Control of Desertification Restoration of Degraded Lands and Reforestation Number 25

United Nations Environment Programme ,  International Sustainability Unit ,  International Coral Reef Initiative ,  [The Coral Reef Economy: The Business Case for Investment in the Protection, Preservation and Enhancement of Coral Reef Health] ,  The Coral Reef Economy: The Business Case for Investment in the Protection, Preservation and Enhancement of Coral Reef Health