Dyfyniad APA

American Medical Association. (2004). Graduate medical education directory 2004-2005. American Medical Association.

Dyfyniad Arddull Chicago

American Medical Association. Graduate Medical Education Directory 2004-2005. U.S.A: American Medical Association, 2004.

Dyfyniad MLA

American Medical Association. Graduate Medical Education Directory 2004-2005. American Medical Association, 2004.

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