Dyfyniad APA
Massachusetts General Hospital, Ballantyne, J., & Fields, H. L. (2006). The Massachusetts General Hospital handbook of pain management (Third edition.). Lippincott Williams & Wilkins.
Dyfyniad Arddull Chicago
Massachusetts General Hospital, Jane Ballantyne, and Howard L. Fields. The Massachusetts General Hospital Handbook of Pain Management. Third edition. Philadelphia: Lippincott Williams & Wilkins, 2006.
Dyfyniad MLA
Massachusetts General Hospital, et al. The Massachusetts General Hospital Handbook of Pain Management. Third edition. Lippincott Williams & Wilkins, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.