World Health Organization (WHO). (2000). The world health report 2000: Health systems : improving performance. World Health Organization.
Citazione stile Chigago Style (17a edizione)World Health Organization (WHO). The World Health Report 2000: Health Systems : Improving Performance. Geneva: World Health Organization, 2000.
Citatione MLA (9a ed.)World Health Organization (WHO). The World Health Report 2000: Health Systems : Improving Performance. World Health Organization, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.