TY  - SER
ED  - International Labour Office.
TI  - 4th International report on the prevention and suppression of dust i n mining, tunnelling and quarrying
PY  - 1970///
CY  - Geneva : 
PB  - International Labour Office, 
KW  - Mine dusts
KW  - Diseases
KW  - Miners
KW  - Dust diseases
KW  - Lungs
KW  - Mining engineering
KW  - Quarries and quarrying
ER  -