World Bank. (1997). Expanding the measure of wealth: Indicators of environmentally sustainable development. World Bank.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld Bank. Expanding the Measure of Wealth: Indicators of Environmentally Sustainable Development. Washington, D.C.: World Bank, 1997.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWorld Bank. Expanding the Measure of Wealth: Indicators of Environmentally Sustainable Development. World Bank, 1997.
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