World Bank. (2010). World development indicators 2010. World Bank.
Cita Chicago Style (17a ed.)World Bank. World Development Indicators 2010. Washington, D.C.: World Bank, 2010.
Cita MLA (9a ed.)World Bank. World Development Indicators 2010. World Bank, 2010.
Precaución: Estas citas no son 100% exactas.