United Nations. (2004). Urban agglomerations 2003. United Nations.
Cita Chicago Style (17a ed.)United Nations. Urban Agglomerations 2003. States United of America: United Nations, 2004.
Cita MLA (9a ed.)United Nations. Urban Agglomerations 2003. United Nations, 2004.
Precaución: Estas citas no son 100% exactas.