United Nations Environment Programme. Governing Council. (1992). Status of desertification and implementation of the United Nations plan of action to combat desertification. United Nations Environment Programme.
Chicago-Zitierstil (17. Ausg.)United Nations Environment Programme. Governing Council. Status of Desertification and Implementation of the United Nations Plan of Action to Combat Desertification. Nairobi, Kenya: United Nations Environment Programme, 1992.
MLA-Zitierstil (9. Ausg.)United Nations Environment Programme. Governing Council. Status of Desertification and Implementation of the United Nations Plan of Action to Combat Desertification. United Nations Environment Programme, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.