Prevention of periodontal disease /  
edited by Fermin A. Carranza, Jr., E. Barrie Kenney. 
 - [Place of publication not identifed] :  [publisher not identified],  c1981 
<br/><br/><label>ISBN: </label>931386519 
<br/><br/><label>LC Class. No.: </label>RK 668 .C33 1981