Gehrig , <br/><br/>
Foundations of Periodontics for the Dental Hygienist   Textual Documents 

 - 2nd. 
 - Philadelphia  Lippincott Williams & Wilkins  2007 
 - 518:  27.5x21.5. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Dewey Class. No.: </label>617.632  / GEH