World Bank. (1997). Expanding the measure of wealth: Indicators of environmentally sustainable development. World Bank.
Cita Chicago (17th ed.)World Bank. Expanding the Measure of Wealth: Indicators of Environmentally Sustainable Development. Washington, D.C.: World Bank, 1997.
Cita MLA (8th ed.)World Bank. Expanding the Measure of Wealth: Indicators of Environmentally Sustainable Development. World Bank, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.