APA引文

WHO. (1990). Management of cataract in primary health care services. World Health Organisation.

Chicago Edition Citation

WHO. Management of Cataract in Primary Health Care Services. Geneva: World Health Organisation, 1990.

MLA引文

WHO. Management of Cataract in Primary Health Care Services. World Health Organisation, 1990.

警告：這些引文格式不一定是100％准確.