United Nations Environment Programme. (2009). The natural fix?: The role of ecosystems in climate mitigation ; a UNEP rapid response assessment. United Nations Environment Programme.
Chicago-Zitierstil (17. Ausg.)United Nations Environment Programme. The Natural Fix?: The Role of Ecosystems in Climate Mitigation ; a UNEP Rapid Response Assessment. [Cambridge, U.K: United Nations Environment Programme, 2009.
MLA-Zitierstil (9. Ausg.)United Nations Environment Programme. The Natural Fix?: The Role of Ecosystems in Climate Mitigation ; a UNEP Rapid Response Assessment. United Nations Environment Programme, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.