APA-viite (7. p.)
World Health Organization & ebrary, Inc. (2008). Older persons in emergencies: An active ageing perspective. World Health Organization.
Chicago-viite (17. p.)
World Health Organization ja Inc ebrary. Older Persons in Emergencies: An Active Ageing Perspective. Albany, N.Y.: World Health Organization, 2008.
MLA-viite (9. p.)
World Health Organization ja Inc ebrary. Older Persons in Emergencies: An Active Ageing Perspective. World Health Organization, 2008.
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