Preker, A. S., & Harding, A. (2003). Innovations in health service delivery: The corporatization of public hospitals. World Bank.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Preker, Alexander S., و April Harding. Innovations in Health Service Delivery: The Corporatization of Public Hospitals. Washington, D.C.: World Bank, 2003.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Preker, Alexander S., و April Harding. Innovations in Health Service Delivery: The Corporatization of Public Hospitals. World Bank, 2003.