World Health Organization. Regional Office for the Western Pacific. (2000). The Work of WHO in the Western Pacific region 1 July 1999 - 30 June 2000: Report of the regional director to the regional committee for the Western Pacific. World Health Organization.
Lua i Stíl Chicago (17ú heag.)World Health Organization. Regional Office for the Western Pacific. The Work of WHO in the Western Pacific Region 1 July 1999 - 30 June 2000: Report of the Regional Director to the Regional Committee for the Western Pacific. Manila: World Health Organization, 2000.
Lua MLA (9ú heag.)World Health Organization. Regional Office for the Western Pacific. The Work of WHO in the Western Pacific Region 1 July 1999 - 30 June 2000: Report of the Regional Director to the Regional Committee for the Western Pacific. World Health Organization, 2000.