Oral health surveys  basic methods 
World Health Organization. 
 - 4th ed. 
 - Geneva  World Healh Organization  1997 
 - vii, 65p.: col. plates; 23cm. 
<br/><br/><label>ISBN: </label>92441544937 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public health; Social health care. Health survey 
<br/><br/><label>Dewey Class. No.: </label>614.42  / O54O