Preker, A. S., & Langenbrunner, J. (2004). Spending wisely: Buying health services for the poor. World Bank.
Citazione stile Chigago Style (17a edizione)Preker, Alexander S., e Jack Langenbrunner. Spending Wisely: Buying Health Services for the Poor. Washington, DC: World Bank, 2004.
Citatione MLA (9a ed.)Preker, Alexander S., e Jack Langenbrunner. Spending Wisely: Buying Health Services for the Poor. World Bank, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.