General & OtherTunnel driving methods used at the Ojuela unit of the Compania Minera de Penoles, S.A., Ojuela, Durango, MexicoJohn P Savage![Tunnel driving methods used at the Ojuela unit of the Compania Minera de Penoles, S.A., Ojuela, Durango, Mexico]()
Tunnel driving methods used at the Ojuela unit of the Compania Minera de Penoles, S.A., Ojuela, Durango, Mexico
John P Savage
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“Tunnel driving methods used at the Ojuela unit of the Compania Minera de Penoles, S.A., Ojuela, Durango, Mexico” by John P Savage: a public-domain book in…
Catalogue details
- Author
- John P Savage
- Category
- General & Other
- Language
- English
- Source
- HathiTrust