United Nations Economic and Social Commission for Western Asia. (2009). Compendium of environment statistics in the ESCWA region ,2008-2009. United Nations.
Chicago-referens (17:e uppl.)United Nations Economic and Social Commission for Western Asia. Compendium of Environment Statistics in the ESCWA Region ,2008-2009. New York: United Nations, 2009.
MLA-referens (9:e uppl.)United Nations Economic and Social Commission for Western Asia. Compendium of Environment Statistics in the ESCWA Region ,2008-2009. United Nations, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.