6th international report on the prevention and suppression of dust in mining, tunnelling and quarrying, 1973-1977.
Wedi'i Gadw mewn:
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Geneva :
International Labour Office,
1982.
|
| Cyfres: | Occupational safety and health series ;
no. 48 |
| Pynciau: |
CARM 1 Store
| Rhif Galw: |
A2:AI25E0 C04311 |
|---|---|
| Copi 1 | Ar gael Gwneud Cais |