ebrary, Inc. (2004). The little green data book 2004. World Bank.
Chicago Style (17th ed.) Citationebrary, Inc. The Little Green Data Book 2004. Washington, D. C.: World Bank, 2004.
MLA引文ebrary, Inc. The Little Green Data Book 2004. World Bank, 2004.
警告:這些引文格式不一定是100%准確.