TY  - BOOK
TI  - Introduction to occupational health and safety 
SN  - 0-87912-133-5
U1  - 616.9803 
PY  - 1986///]
CY  - Itasca, IL : 
PB  - National Safety Council, 
KW  - Industrial hygiene
KW  - Industrial safety
N1  - Includes index.; Title: Occupational health and safety
ER  -