Dokumentuaren aipamena

APA (7th ed.) Zitazioa
ebrary, Inc. (2001). Country and summary data. World Bank.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc. Country and Summary Data. Washington, D.C. ; [Great Britain]: World Bank, 2001.
MLA (9th ed.) Zitazioa
ebrary, Inc. Country and Summary Data. World Bank, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.