Engineering & TechnologyComparative shortwall and room-and-pillar mining costsLarry E Green![Comparative shortwall and room-and-pillar mining costs]()
Comparative shortwall and room-and-pillar mining costs
Larry E Green
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“Comparative shortwall and room-and-pillar mining costs” by Larry E Green: a public-domain book in “Engineering & Technology”, written in English. Read it in…
Catalogue details
- Author
- Larry E Green
- Category
- Engineering & Technology
- Language
- English
- Source
- HathiTrust