Collins, W. J. N. A handbook for dental hygienists / W. J. N. Collins., T. F. Walsh . - 3d ed. - Oxford : Reed Educational and Professional Publishing , 1992. - vii, 344 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 0723609802 Subjects--Topical Terms: Dental Hygienists --------handbooks.Dentistry --------handbooks. National Library of Medicine Call No.: WU 39 / C695h 1992