Ehrlich, Ann B Essentials of dental assisting Debbie S. Robinson, Doni L. Bird - 4th ed - Philadelphia, PA Saunders/Elsevier 2007 - xxv, 535 p. : ill. ; 28 cm Includes index ISBN: 9781416036685 ISSN: 2007274163 Subjects--Topical Terms: Dental assistantsDentistry Dewey Class. No.: 617.60233 ROB