APA引文

Johnson, P. T. (2001). Obstetric and gynecologic ultrasound: Case review. St. Louis: Mosby.

Trích dẫn kiểu Chicago

Johnson, Pamela T. Obstetric and Gynecologic Ultrasound: Case Review. St. Louis: Mosby, 2001.

MLA引文

Johnson, Pamela T. Obstetric and Gynecologic Ultrasound: Case Review. St. Louis: Mosby, 2001.

警告：这些引文格式不一定是100％准确.