Besner, Edward. Practical endodontics : a clinical guide / Edward Besner, Peter D. Ferrigno. - Baltimore : Williams & Wilkins, c1981. - xi, 164 p. : ill. ; ISBN: 068300607X 9780683006070 Subjects--Topical Terms: Endodontics National Library of Medicine Call No.: WU 230 / .B47 1981