World Health Organization. (2008). International health regulations (2005) (Second edition.). World Health Organization.
Citazione stile Chigago Style (17a edizione)World Health Organization. International Health Regulations (2005). Second edition. Geneva: World Health Organization, 2008.
Citatione MLA (8a ed.)World Health Organization. International Health Regulations (2005). Second edition. World Health Organization, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.