TY  - BOOK
TI  - Oral health surveys : basic methods
SN  - 9241544937
U1  - 617.601 
PY  - 1997///
CY  - Geneva
PB  - WHO
KW  - ORAL HEALTH
KW  - Oral Health Surveys
KW  - Manuals
UR  - http://apps.who.int/iris/handle/10665/41905
ER  -