APA (7th ed.) Zitazioa

Preker, A. S., & Langenbrunner, J. (2004). Spending wisely: Buying health services for the poor. World Bank.

Chicago Style (17th ed.) Zitazioa

Preker, Alexander S., eta Jack Langenbrunner. Spending Wisely: Buying Health Services for the Poor. Washington, DC: World Bank, 2004.

MLA (9th ed.) Zitazioa

Preker, Alexander S., eta Jack Langenbrunner. Spending Wisely: Buying Health Services for the Poor. World Bank, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.