World Bank & World Bank. (2006). Where is the wealth of nations: Measuring capital for the 21st century. The World Bank.
Chicago-referens (17:e uppl.)World Bank och World Bank. Where Is the Wealth of Nations: Measuring Capital for the 21st Century. Washington, D.C.: The World Bank, 2006.
MLA-referens (9:e uppl.)World Bank och World Bank. Where Is the Wealth of Nations: Measuring Capital for the 21st Century. The World Bank, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.