Gaya APA

Berthold, B. (2016). Abdominal Ultrasound: Step by Step . Stuttgar. New Yorkk. Delhi.. : Georg Thieme verlag.

Gaya MLA

Berthold, B.. Abdominal Ultrasound: Step by Step. Stuttgar. New Yorkk. Delhi.. : Georg Thieme verlag, 2016. Text.