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United Nations Environment Programme ,  [Desertification Control Bulletin Supplement to Number 10, 1984: A Bulletin of World Events in the Control of Desertification Restoration of Degraded Lands and Reforestation] ,  Desertification Control Bulletin Supplement to Number 10, 1984: A Bulletin of World Events in the Control of Desertification Restoration of Degraded Lands and Reforestation

United Nations Environment Programme ,  [Desertification Control Bulletin Number 36, 2000: A Bulletin of World Events in the Control of Desertification Restoration of Degraded Lands and Reforestation] ,  Desertification Control Bulletin Number 36, 2000: A Bulletin of World Events in the Control of Desertification Restoration of Degraded Lands and Reforestation

Intergovernmental Panel on Climate Change (IPCC) ,  [Climate Change and Land: An IPCC Special Report on Climate Change, Desertification, Land Degradation, Sustainable Land Management, Food Security, and Greenhouse Gas Fluxes in Terrestrial Ecosystems - Summary for Policymakers] ,  Climate Change and Land: An IPCC Special Report on Climate Change, Desertification, Land Degradation, Sustainable Land Management, Food Security, and Greenhouse Gas Fluxes in Terrestrial Ecosystems - Summary for Policymakers

United Nations Environment Programme ,  [The State of the Environment: Selected Topics - 1977] ,  The State of the Environment: Selected Topics - 1977

United Nations Environment Programme ,  Food and Agriculture Organization of the United Nations ,  [Environmental Guidelines for the Restoration and Rehabilitation of Land and Soils after Mining Activities - UNEP Environmental Management Guidelines No. 8] ,  Environmental Guidelines for the Restoration and Rehabilitation of Land and Soils after Mining Activities - UNEP Environmental Management Guidelines No. 8

United Nations Environment Programme ,  [Desertification Control: The Semi-annual Bulletin on Plans and Activities Volume 1 Number 2 December 1978] ,  Desertification Control: The Semi-annual Bulletin on Plans and Activities Volume 1 Number 2 December 1978

United Nations Environment Programme ,  [Desertification Control Number 5, December 1981] ,  Desertification Control Number 5, December 1981

United Nations Environment Programme ,  [Desertification Control Bulletin Number 18, 1990] ,  Desertification Control Bulletin Number 18, 1990

United Nations Environment Programme ,  [Desertification Control Number 7, December 1982] ,  Desertification Control Number 7, December 1982

United Nations Environment Programme ,  [Desertification Control Bulletin Number 12, 1985] ,  Desertification Control Bulletin Number 12, 1985