TY  - BOOK
TI  - Oral health surveys: basic methods
SN  - 9241544937
AV  - RK52 .W67 1997
U1  - 614.5/996 
PY  - 1997///
CY  - Geneva
PB  - World Health Organization
KW  - Dental surveys.;Teeth;Dental Health Surveys
ER  -