World Health Organization. (1997). The world health report 1997: Conquering suffering, enriching humanity : report of the Director-General. World Health Organization.
Cita Chicago (17th ed.)World Health Organization. The World Health Report 1997: Conquering Suffering, Enriching Humanity : Report of the Director-General. Geneva: World Health Organization, 1997.
Cita MLA (8th ed.)World Health Organization. The World Health Report 1997: Conquering Suffering, Enriching Humanity : Report of the Director-General. World Health Organization, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.