World Health Organization. (2000). Healthy ageing development. World Health Organization.
Citace podle Chicago (17th ed.)World Health Organization. Healthy Ageing Development. Geneva: World Health Organization, 2000.
Citace podle MLA (8th ed.)World Health Organization. Healthy Ageing Development. World Health Organization, 2000.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..