Widmer, Ruth S. Radiography study guide and registry review / - 1st ed. - Philadelphia : Saunders, 1999. - xiv, 381 p. : ill. ; 1 computer laser optical disc (4 3/4 in.) ISBN: 0721672892 Subjects--Topical Terms: Medical radiologyRadiographyTechnology, Radiologic LC Class. No.: MEDR896 / W54