Preker, A. S., & Langenbrunner, J. (2004). Spending wisely: Buying health services for the poor. World Bank.
芝加哥风格引文Preker, Alexander S., 与 Jack Langenbrunner. Spending Wisely: Buying Health Services for the Poor. Washington, DC: World Bank, 2004.
MLA引文Preker, Alexander S., 与 Jack Langenbrunner. Spending Wisely: Buying Health Services for the Poor. World Bank, 2004.
警告：这些引文格式不一定是100％准确.