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.
Čikaški stil citiranja (17. izdanje)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.
MLA način citiranja (9. izdanje)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.