Cita APA (7a ed.)

World Bank & ebrary, Inc. (2012). The little data book: 2012. World Bank.

Cita Chicago Style (17a ed.)

World Bank y Inc ebrary. The Little Data Book: 2012. Washington, D.C.: World Bank, 2012.

Cita MLA (9a ed.)

World Bank y Inc ebrary. The Little Data Book: 2012. World Bank, 2012.