Proffit, William R. Henry W. Fields creator text St. Louis, Missouri Mosby, Inc. A Harcourt Health Sciences Company 2000 monographic x, 742 p. : ill. ; 28 cm. Includes bibliographical references and index. Orthodontics Etiology Limitations Biomechanics Mechanics Preadolescent IIDC 617.643 PRO 1556645538 (hb) 8178671026 (hb)