Pattison, Gordon L. <br/><br/>
Periodontal instrumentation :  a clinical manual / 
Gordon L. Pattison 
 - [Place of publication not identifed] :  [publisher not identified],  c1979 
<br/><br/> Periodontal instrumentation : a clinical manual, Periodontal 
<br/><br/><label>ISBN: </label>879096047 
<br/><br/><label>LC Class. No.: </label>RK 361 .P35 1979