Oral health surveys:  basic methods  

 - 4th edition 
 - Geneva:  WHO,  1997 
 - 66 pages  illustrations [some color] 
<br/><br/><label>ISBN: </label>9241544937 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dental health -- --Survey research<br/>Dental health maintenance
<br/><br/><label>LC Class. No.: </label>