APA引文

Mantoni, M. (1987). Ultrasound studies of patients with bleeding in early pregnancy.

Chicago Style (17th ed.) Citation

Mantoni, Margit. Ultrasound Studies of Patients with Bleeding in Early Pregnancy. 1987.

MLA引文

Mantoni, Margit. Ultrasound Studies of Patients with Bleeding in Early Pregnancy. 1987.

警告：这些引文格式不一定是100％准确.