Engineering & TechnologyThree potential longwall mining methods for thick coal seams in the western United StatesRichard H Oitto![Three potential longwall mining methods for thick coal seams in the western United States]()
Three potential longwall mining methods for thick coal seams in the western United States
Richard H Oitto
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“Three potential longwall mining methods for thick coal seams in the western United States” by Richard H Oitto: a public-domain book in “Engineering &…
Catalogue details
- Author
- Richard H Oitto
- Category
- Engineering & Technology
- Language
- English
- Source
- HathiTrust