Cita APA

World Helalth Organization. (2007). Global age-friendly cities: A guide. World Health Organization.

Citación estilo Chicago

World Helalth Organization. Global Age-friendly Cities: A Guide. Geneva: World Health Organization, 2007.

Cita MLA

World Helalth Organization. Global Age-friendly Cities: A Guide. World Health Organization, 2007.

Warning: These citations may not always be 100% accurate.