Safe working in tunnelling : this document is written for tunnel workers and first line supervision
prepared by TBG and STUVA in cooperation with ITA Working Group "Health and Safety"
Bok Engelsk 1989
| Utgitt | München : Tiefbau-Berufsgenossenschaft , 1989
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|---|---|
| Omfang | 117 s. : ill.
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| Emner |
