Williams, David M. Pathology of periodontal disease / - Oxford ; New York : Oxford University Press, 1992. - viii, 150 p. : Ill. (some col.) ; ISBN: 0192619551 (hbk) : 0192621203 (pbk) : Subjects--Topical Terms: Periodontal disease.Periodontal Diseases. LC Class. No.: MED RK361 / .W566