Sustentável, C. d. N. U. s. D. (2012). Zero net land degradation: A sustainable development goal for Rio+20: to secure the contribuition of our planet's land and soil to sustainable development, including food security and poverty eradication.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Sustentável, Conferência das Nações Unidas sobre Desenvolvimento. Zero Net Land Degradation: A Sustainable Development Goal for Rio+20: To Secure the Contribuition of Our Planet's Land and Soil to Sustainable Development, Including Food Security and Poverty Eradication. 2012.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Sustentável, Conferência das Nações Unidas sobre Desenvolvimento. Zero Net Land Degradation: A Sustainable Development Goal for Rio+20: To Secure the Contribuition of Our Planet's Land and Soil to Sustainable Development, Including Food Security and Poverty Eradication. 2012.