World Health Organization  <br/><br/>
Oral health surveys :  basic methods. 

 - 3rd 
 - Geneva  W H O  1987 
 - 53 p.  26 cm. 
 -   .
<br/><br/>  
<br/><br/>  Health Care, Health Surveys 
<br/><br/><label>ISBN: </label>92 4 154216 0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Health Surveys<br/>Health Care
<br/><br/><label>Dewey Class. No.: </label>WA900  / WHO