United Nations. (2008). World economic situation and prospects 2008. United Nations.
Chicago Style aipamenaUnited Nations. World Economic Situation and Prospects 2008. New York: United Nations, 2008.
MLA aipamenaUnited Nations. World Economic Situation and Prospects 2008. United Nations, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.