APA引文

OMS. (1990). Biological substances. Genève: OMS.

Trích dẫn kiểu Chicago

OMS. Biological Substances. Genève: OMS, 1990.

MLA引文

OMS. Biological Substances. Genève: OMS, 1990.

警告：这些引文格式不一定是100％准确.