Kerr, Donald A. Oral pathology : an introduction to general and oral pathology for hygienists / Donald A. Kerr and M. Ash - Philadelphia : Lea and Febiger, 1960 - 205 p. : ill., tables ; 24 cm. Includes bibliographical references and index Subjects--Topical Terms: Digestive organs--DiseasesGastroenterology Dewey Class. No.: 616.3107