APA-čujuhus (7. p.)
World Health Organization & ebrary, Inc. (2007). Global age-friendly cities: A guide. World Health Organization.
Chicago-čujuhus (17. p.)
World Health Organization juo Inc ebrary. Global Age-friendly Cities: A Guide. Geneva: World Health Organization, 2007.
MLA-čujuhus (9. p.)
World Health Organization juo Inc ebrary. Global Age-friendly Cities: A Guide. World Health Organization, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.