Rio +20 United Nations Conference on Sustainable Development : Rio de Janeiro, Brazil, 20-22 June 2012.
Rio+20 (Conference)(2012 :Rio de Janeiro, Brazil)
New York, NY : United Nations Dept. of Public Information,
2012.
Cover title.
"February 2012"--P. [4] of cover.
"The future we want."
Environmental policy
Economic development
Sustainable development
Environmental law, International
Natural resources
Forest management