APA (7th ed.) Zitazioa

World Bank & ebrary, Inc. (2012). Global development finance 2012: External debt of developing countries. World Bank.

Chicago Style (17th ed.) Zitazioa

World Bank eta Inc ebrary. Global Development Finance 2012: External Debt of Developing Countries. Washington, D.C.: World Bank, 2012.

MLA (9th ed.) Zitazioa

World Bank eta Inc ebrary. Global Development Finance 2012: External Debt of Developing Countries. World Bank, 2012.