APA-referens (7:e uppl.)
United Nations Human Settlements programme. (2006). The challenge of slums: Global report on human settlements 2003. Earthscan.
Chicago-referens (17:e uppl.)
United Nations Human Settlements programme. The Challenge of Slums: Global Report on Human Settlements 2003. London: Earthscan, 2006.
MLA-referens (9:e uppl.)
United Nations Human Settlements programme. The Challenge of Slums: Global Report on Human Settlements 2003. Earthscan, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.