World Health Organization. (2000). The world health report 2000 health systems: Improving performance. World Health Organization.
Cita Chicago (17th ed.)World Health Organization. The World Health Report 2000 Health Systems: Improving Performance. Geneva: World Health Organization, 2000.
Cita MLA (8th ed.)World Health Organization. The World Health Report 2000 Health Systems: Improving Performance. World Health Organization, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.