Michele Leonardi Darby, Margaret M. Walsh. <br/><br/>
Dental hygiene theory and practice / 
Michele Leonardi Darby and Margaret M. Walsh. 
 - [Place of publication not identifed] :  [publisher not identified],  c2010 
<br/><br/><label>ISBN: </label>9781416061007 
<br/><br/><label>LC Class. No.: </label>RK 60.5 .D37 2010