Dyfyniad APA
Beckmann, C. R. B. (2006). Obstetrics and gynecology (accompanied by a CD-Rom available at the Multimedia) (5th ed.). Lippincott Williams & Wilkins.
Dyfyniad Arddull Chicago
Beckmann, Charles R. B. Obstetrics and Gynecology (accompanied by a CD-Rom Available at the Multimedia). 5th ed. Philadelphia, PA: Lippincott Williams & Wilkins, 2006.
Dyfyniad MLA
Beckmann, Charles R. B. Obstetrics and Gynecology (accompanied by a CD-Rom Available at the Multimedia). 5th ed. Lippincott Williams & Wilkins, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.