Dyfyniad APA

International Society for Study of the Lumbar Spine & Herkowitz, H. N. (2004). The lumbar spine (Third edition.). Lippincott Williams & Wilkins.

Dyfyniad Arddull Chicago

International Society for Study of the Lumbar Spine and Harry N. Herkowitz. The Lumbar Spine. Third edition. Philadelphia: Lippincott Williams & Wilkins, 2004.

Dyfyniad MLA

International Society for Study of the Lumbar Spine and Harry N. Herkowitz. The Lumbar Spine. Third edition. Lippincott Williams & Wilkins, 2004.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.