APA引文

(1995). Obstetrics and gynecology. Baltimore, Md: Lippincott Williams & Wilkins.

Trích dẫn kiểu Chicago

Obstetrics and Gynecology. Baltimore, Md: Lippincott Williams & Wilkins, 1995.

MLA引文

Obstetrics and Gynecology. Baltimore, Md: Lippincott Williams & Wilkins, 1995.

警告：这些引文格式不一定是100％准确.