APA (7th ed.) Citation

(2012). The health-care challenges posed by population ageing. The World Health Organization.

Chicago Style (17th ed.) Citation

The Health-care Challenges Posed by Population Ageing. The World Health Organization, 2012.

MLA (9th ed.) Citation

The Health-care Challenges Posed by Population Ageing. The World Health Organization, 2012.

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