Dyfyniad APA
World Bank, ebrary, Inc, Banerjee, S. G., & Morella, E. (2011). Africa's water and sanitation infrastructure: Access, affordability, and alternatives. World Bank.
Dyfyniad Arddull Chicago
World Bank, Inc ebrary, Sudeshna Ghosh Banerjee, and Elvira Morella. Africa's Water and Sanitation Infrastructure: Access, Affordability, and Alternatives. Washington, D.C.: World Bank, 2011.
Dyfyniad MLA
World Bank, et al. Africa's Water and Sanitation Infrastructure: Access, Affordability, and Alternatives. World Bank, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.