World Bank & World Bank. (2006). Where is the wealth of nations: Measuring capital for the 21st century. The World Bank.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld Bank और World Bank. Where Is the Wealth of Nations: Measuring Capital for the 21st Century. Washington, D.C.: The World Bank, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWorld Bank और World Bank. Where Is the Wealth of Nations: Measuring Capital for the 21st Century. The World Bank, 2006.
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