World Bank, ebrary, Inc, Banerjee, S. G., & Morella, E. (2011). Africa's water and sanitation infrastructure: Access, affordability, and alternatives. World Bank.
芝加哥风格引文World Bank, Inc ebrary, Sudeshna Ghosh Banerjee, 与 Elvira Morella. Africa's Water and Sanitation Infrastructure: Access, Affordability, and Alternatives. Washington, D.C.: World Bank, 2011.
MLA引文World Bank, et al. Africa's Water and Sanitation Infrastructure: Access, Affordability, and Alternatives. World Bank, 2011.
警告：这些引文格式不一定是100％准确.