Gaya APA

Block, B. (2004). The Practice of Ultrasound : A Step - by - Step Guide to Abdominal Scanning (-). Stuttgart New York: Georg Thieme verlag.

Gaya MLA

Block, Berthold. "The Practice of Ultrasound : A Step - by - Step Guide to Abdominal Scanning". - Stuttgart New York: Georg Thieme verlag, 2004. Text.