The World Bank. (2008). The little data book 2008. Washington, D.C: The World Bank.
Trích dẫn kiểu ChicagoThe World Bank. The Little Data Book 2008. Washington, D.C: The World Bank, 2008.
MLA引文The World Bank. The Little Data Book 2008. Washington, D.C: The World Bank, 2008.
警告：這些引文格式不一定是100％准確.