The World Bank. (2009). The little data book 2009. Washington, D.C: The World Bank.
Chicago Style CitationThe World Bank. The Little Data Book 2009. Washington, D.C: The World Bank, 2009.
Cita MLAThe World Bank. The Little Data Book 2009. Washington, D.C: The World Bank, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.