Preker, A. S., & Langenbrunner, J. (2004). Spending wisely: Buying health services for the poor. World Bank.
Citação do estilo Chicago (17ª ed.)Preker, Alexander S., e Jack Langenbrunner. Spending Wisely: Buying Health Services for the Poor. Washington, DC: World Bank, 2004.
Citação MLA (9ª ed.)Preker, Alexander S., e Jack Langenbrunner. Spending Wisely: Buying Health Services for the Poor. World Bank, 2004.