Ash, Major M., 1921- Oral pathology : an introduction to general and oral pathology fo r hygienists / Major M. Ash, Jr. - 6th ed. - Philadelphia : Lea & Febiger, 1992. - x, 321 p. : ill. ; 26 cm. Rev. ed. of: Kerr and Ash's oral pathology. 5th ed. 1986. Includes bibliographical references and index. ISBN: 0812114345 Subjects--Topical Terms: Teeth -- Diseases. Mouth -- Diseases. Pathology. Dental hygiene. Dental Hygienists. Mouth Diseases -- pathology. Tooth Diseases -- pathology. National Library of Medicine Call No.: WU 140 / A31o 1992