APA Format
World Health Organization (WHO) . (). Home-based long-term care: report of a WHO study group. : Geneva WHO 2000
MLA Format
World Health Organization (WHO) . Home-based long-term care: report of a WHO study group. : Geneva WHO 2000,
Australian/Harvard Format
World Health Organization (WHO) . . Home-based long-term care: report of a WHO study group. Geneva WHO 2000, 
Warning: These citations may not always be 100% accurate.