World Bank. (2009). Global economic prospects: Commodities at the crossroads. World Bank.
Citazione stile Chigago Style (17a edizione)World Bank. Global Economic Prospects: Commodities at the Crossroads. Washington, DC: World Bank, 2009.
Citatione MLA (8a ed.)World Bank. Global Economic Prospects: Commodities at the Crossroads. World Bank, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.