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Chicago-viite (17. p.)WHO Study group on Epidemiology and Prevention of Cardiovascular Diseases in the Elderly ja World Health Organization. Epidemiology and Prevention of Cardiovascular Diseases in Elderly People: Report of a WHO Study Group. Geneva: World Health Organization, 1995.
MLA-viite (9. p.)WHO Study group on Epidemiology and Prevention of Cardiovascular Diseases in the Elderly ja World Health Organization. Epidemiology and Prevention of Cardiovascular Diseases in Elderly People: Report of a WHO Study Group. World Health Organization, 1995.