Dyfyniad APA
Szpalski, M., & Gunzburg, R. (2005). The failed spine. Lippincott Williams & Willkins.
Dyfyniad Arddull Chicago
Szpalski, Marek, and Robert Gunzburg. The Failed Spine. Philadelphia: Lippincott Williams & Willkins, 2005.
Dyfyniad MLA
Szpalski, Marek, and Robert Gunzburg. The Failed Spine. Lippincott Williams & Willkins, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.