ebrary, Inc. (2004). A guide to competitive vouchers in health. World Bank.
Cita Chicago Style (17a ed.)ebrary, Inc. A Guide to Competitive Vouchers in Health. Washington, DC: World Bank, 2004.
Cita MLA (9a ed.)ebrary, Inc. A Guide to Competitive Vouchers in Health. World Bank, 2004.
Precaución: Estas citas no son 100% exactas.