APA-referens (7:e uppl.)
United Nations Environment Programme. (2003). Tunza: Acting for a better world. United Nations Environment Programme.
Chicago-referens (17:e uppl.)
United Nations Environment Programme. Tunza: Acting for a Better World. [Nairobi, Kenya]: United Nations Environment Programme, 2003.
MLA-referens (9:e uppl.)
United Nations Environment Programme. Tunza: Acting for a Better World. United Nations Environment Programme, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.