APA Citation

Callen, P. W. (2008). Ultrasonography in obstetrics and gynecology (5th ed.). Philadelphia: Saunders Elsevier.

Chicago Style Citation

Callen, Peter W. Ultrasonography in Obstetrics and Gynecology. 5th ed. Philadelphia: Saunders Elsevier, 2008.

MLA Citation

Callen, Peter W. Ultrasonography in Obstetrics and Gynecology. 5th ed. Philadelphia: Saunders Elsevier, 2008.

Warning: These citations may not always be 100% accurate.