APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.