
Pillar and Roof Span Design Guidelines for Underground Stone Mines
- Författare
- Centers for Disease Cont And Prevention, National Institute Fo Safety and Health, D. Human Services
- ISBN
- 9781493566679
- Språk
- Engelska
- Vikt
- 200 gram
- Utgivningsdatum
- 2013-10-01
- Sidor
- 76
