APA Цитирование

WHO(world health organization). (2005). Healthy ageing: Practical pointers on keeping well. WHO.

Chicago-стиль цитирования

WHO(world health organization). Healthy Ageing: Practical Pointers on Keeping Well. Geneva: WHO, 2005.

MLA-цитирование

WHO(world health organization). Healthy Ageing: Practical Pointers on Keeping Well. WHO, 2005.

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.