Trích dẫn APA

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

Trích dẫn kiểu Chicago

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

Trích dẫn MLA

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

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.