6th international report on the prevention and suppression of dust in mining, tunnelling and quarrying, 1973-1977.
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| 企業作者: | |
|---|---|
| 格式: | 圖書 |
| 語言: | English |
| 出版: |
Geneva :
International Labour Office,
1982.
|
| 叢編: | Occupational safety and health series ;
no. 48 |
| 主題: |
| 實物描述: | ix, 152 p. |
|---|---|
| ISBN: | 9221030067 |