APA引文

OMS. Endomental bleeding and steroidal contraception. Geneva: OMS.

Trích dẫn kiểu Chicago

OMS. Endomental Bleeding and Steroidal Contraception. Geneva: OMS.

MLA引文

OMS. Endomental Bleeding and Steroidal Contraception. Geneva: OMS.

警告：这些引文格式不一定是100％准确.