World Health Organization. Ageing and Life Course Unit & ebrary, Inc. (2008). WHO global report on falls prevention in older age. World Health Organization.
Παραπομπή σε μορφή Chicago (17η εκδ.)World Health Organization. Ageing and Life Course Unit και Inc ebrary. WHO Global Report on Falls Prevention in Older Age. Geneva, Switzerland: World Health Organization, 2008.
Παραπομπή σε μορφή MLA (9th εκδ.)World Health Organization. Ageing and Life Course Unit και Inc ebrary. WHO Global Report on Falls Prevention in Older Age. World Health Organization, 2008.
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