Johnston, John F., 1900- Modern practice in crown and bridge prosthodontics / John F. Johnston, Ralph W. Phillips and Roland W. Dykema. - 3rd ed. - Philadelphia : W. B. Saunders, 1971. - 692 p. : ill. ; 27 cm. ISBN: 0721651722 Subjects--Topical Terms: Crowns (Dentistry).Bridges (Dentistry).