Dyfyniad APA
Frymoyer, J. W., Wiesel, S. W., & An, H. S. (2004). The adult and pediatric spine (Third edition.). Lippincott Williams & Wilkins.
Dyfyniad Arddull Chicago
Frymoyer, John W., Sam W. Wiesel, and Howard S. An. The Adult and Pediatric Spine. Third edition. Philadelphia: Lippincott Williams & Wilkins, 2004.
Dyfyniad MLA
Frymoyer, John W., et al. The Adult and Pediatric Spine. Third edition. Lippincott Williams & Wilkins, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.