ebrary, Inc. (2010). The little green data book: From the World Development Indicators. World Bank.
芝加哥风格引文ebrary, Inc. The Little Green Data Book: From the World Development Indicators. Washington, D.C.: World Bank, 2010.
MLA引文ebrary, Inc. The Little Green Data Book: From the World Development Indicators. World Bank, 2010.
警告：这些引文格式不一定是100％准确.