World Health Organization. (2005). Preparing a health care workforce for the 21st century: The challenge of chronic conditions. World health Organization.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)World Health Organization. Preparing a Health Care Workforce for the 21st Century: The Challenge of Chronic Conditions. Geneva: World health Organization, 2005.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)World Health Organization. Preparing a Health Care Workforce for the 21st Century: The Challenge of Chronic Conditions. World health Organization, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.