Cita APA (7a ed.)

World Bank & ebrary, Inc. (2006). Africa development indicators 2006. World Bank.

Cita Chicago Style (17a ed.)

World Bank y Inc ebrary. Africa Development Indicators 2006. Washington, D.C.: World Bank, 2006.

Cita MLA (9a ed.)

World Bank y Inc ebrary. Africa Development Indicators 2006. World Bank, 2006.