APA ציטוט

Callen, P. W. (1988). Ultrasonography in obstetrics and Gynecology.

Chicago Style (17th ed.) Citation

Callen, Peter W. Ultrasonography in Obstetrics and Gynecology. 1988.

ציטוט MLA

Callen, Peter W. Ultrasonography in Obstetrics and Gynecology. 1988.