TY  - BOOK
AU  - Waldron, H. A
TI  - Occupational health practice
SN  - 0407337024 :
U1  - 613.11 
PY  - 1989///
CY  - London, Boston
PB  - Butterworths
KW  - Industrial hygiene
KW  - Occupational health services
KW  - Occupational medicine
N1  - Bibliography & index
ER  -