APA (7th ed.) Zitazioa

ebrary, Inc. (2012). The little data book on external debt 2012. World Bank.

Chicago Style (17th ed.) Zitazioa

ebrary, Inc. The Little Data Book on External Debt 2012. Washington, D.C.: World Bank, 2012.

MLA (9th ed.) Zitazioa

ebrary, Inc. The Little Data Book on External Debt 2012. World Bank, 2012.