Engineering & TechnologyModified longwall mining with German coal planers : summary of operations at five coal minesWilbur A Haley![Modified longwall mining with German coal planers : summary of operations at five coal mines]()
Modified longwall mining with German coal planers : summary of operations at five coal mines
Wilbur A Haley
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“Modified longwall mining with German coal planers : summary of operations at five coal mines” by Wilbur A Haley: a public-domain book in “Engineering &…
Catalogue details
- Author
- Wilbur A Haley
- Category
- Engineering & Technology
- Language
- English
- Source
- HathiTrust