World Bank. (2009). Global economic prospects: Commodities at the crossroads. World Bank.
Cita Chicago Style (17a ed.)World Bank. Global Economic Prospects: Commodities at the Crossroads. Washington, DC: World Bank, 2009.
Cita MLA (8a ed.)World Bank. Global Economic Prospects: Commodities at the Crossroads. World Bank, 2009.
Precaución: Estas citas no son 100% exactas.