APA引文

OMS. Bulletin of WHO: Vol.68(1)/1990. Geneva: OMS.

Trích dẫn kiểu Chicago

OMS. Bulletin of WHO: Vol.68(1)/1990. Geneva: OMS.

MLA引文

OMS. Bulletin of WHO: Vol.68(1)/1990. Geneva: OMS.

警告：这些引文格式不一定是100％准确.