Kirkpatrick, C., Parker, D., & Zhang, Y.-F. [ca. 2006]. An Empirical Analysis of State and Private Sector Provision of Water Services in Africa. In World Bank Economic Review [Cd]. Published by Oxford University Press on behalf of the World Bank: The World Bank Group. https://doi.org/10986/16465

KIRKPATRICK, Colin, PARKER, David und ZHANG, Yin-Fang, 2006. An Empirical Analysis of State and Private Sector Provision of Water Services in Africa. Published by Oxford University Press on behalf of the World Bank: The World Bank Group.

Kirkpatrick, C., D. Parker, und Y.-F. Zhang. „An Empirical Analysis of State and Private Sector Provision of Water Services in Africa“. World Bank Economic Review, cd, The World Bank Group, 2006, https://doi.org/10986/16465.

Kirkpatrick, Colin/Parker, David/Zhang, Yin-Fang: An Empirical Analysis of State and Private Sector Provision of Water Services in Africa, Published by Oxford University Press on behalf of the World Bank 2006.

Kirkpatrick, C., Parker, D. und Zhang, Y.-F. (2006), An Empirical Analysis of State and Private Sector Provision of Water Services in Africa, World Bank Economic Review, Bd. , The World Bank Group, Published by Oxford University Press on behalf of the World Bank, verfügbar unter:https://doi.org/10986/16465.