Darby, Michele Leonardi <br/><br/>
Dental hygiene :theory and practice /edited by Michele Leonardi Darby, Margaret M. Walsh. 

 - Fourth edition. 
 - St. Louis, Missouri   Elsevier,  2015 
<br/><br/><label>ISBN: </label>9780323318884 
<br/><br/><label>National Library of Medicine Call No.: </label>WU 113 D414d 2015