Cita APA

The World Bank. (2007). World developmet indicators 2007. Washington, D.C: The World Bank.

Chicago Style Citation

The World Bank. World Developmet Indicators 2007. Washington, D.C: The World Bank, 2007.

Cita MLA

The World Bank. World Developmet Indicators 2007. Washington, D.C: The World Bank, 2007.

Atenció: Aquestes cites poden no estar 100% correctes.