Helms, B. (2006). Access for all: Building inclusive financial systems. World Bank.
Citazione stile Chigago Style (17a edizione)Helms, Brigit. Access for All: Building Inclusive Financial Systems. Washington, DC: World Bank, 2006.
Citatione MLA (9a ed.)Helms, Brigit. Access for All: Building Inclusive Financial Systems. World Bank, 2006.