World Health Organization. (1997). The world health report 1997: Conquering suffering, enriching humanity : report of the Director-General. World Health Organization.
Lua i Stíl Chicago (17ú heag.)World Health Organization. The World Health Report 1997: Conquering Suffering, Enriching Humanity : Report of the Director-General. Geneva: World Health Organization, 1997.
Lua MLA (8ú heag.)World Health Organization. The World Health Report 1997: Conquering Suffering, Enriching Humanity : Report of the Director-General. World Health Organization, 1997.
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