the World Bank. (2007). Doing Business 2007: How to reform. World Bank Group.
Cita Chicago (17th ed.)the World Bank. Doing Business 2007: How to Reform. Washington: World Bank Group, 2007.
Cita MLA (9th ed.)the World Bank. Doing Business 2007: How to Reform. World Bank Group, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.