TY  - BOOK
AU  -  World Health Organization 
TI  - Oral health surveys: basic methods
SN  - 92 4 154216 0
U1  - WA900 
PY  - 1987///
CY  - Geneva
PB  - W H O
KW  - Health Surveys
KW  - Health Care
N2  -  Health Care, Health Surveys
ER  -