Preker, A. S., & Langenbrunner, J. (2004). Spending wisely: Buying health services for the poor. World Bank.
Lua i Stíl Chicago (17ú heag.)Preker, Alexander S., agus Jack Langenbrunner. Spending Wisely: Buying Health Services for the Poor. Washington, DC: World Bank, 2004.
Lua MLA (9ú heag.)Preker, Alexander S., agus Jack Langenbrunner. Spending Wisely: Buying Health Services for the Poor. World Bank, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.