World Bank & Preker, A. S. (2007). Public ends, private means: Strategic purchasing of health services. World Bank.
Citação do estilo Chicago (17ª ed.)World Bank e Alexander S. Preker. Public Ends, Private Means: Strategic Purchasing of Health Services. Washington, D.C.: World Bank, 2007.
Citação MLA (9ª ed.)World Bank e Alexander S. Preker. Public Ends, Private Means: Strategic Purchasing of Health Services. World Bank, 2007.