✦ LIBER ✦
Homemade roof-strain indicator helps judge safety of bolted coal mine roof : Anonymous Coal Age, V79, N5, May, 1973, 134P
- Book ID
- 107895832
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 101 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0148-9062
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