The World Bank. (2009). Global economic prospects: Commodities at the crossroads 2009. Wshington, DC: World Bank.
शिकागो स्टाइल उद्धरणThe World Bank. Global Economic Prospects: Commodities At the Crossroads 2009. Wshington, DC: World Bank, 2009.
एमएलए उद्धरणThe World Bank. Global Economic Prospects: Commodities At the Crossroads 2009. Wshington, DC: World Bank, 2009.
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