Politics & EconomicsRelative pressure changes in coal pillars during extraction : a progress reportErnest A Curth![Relative pressure changes in coal pillars during extraction : a progress report]()
Relative pressure changes in coal pillars during extraction : a progress report
Ernest A Curth
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“Relative pressure changes in coal pillars during extraction : a progress report” by Ernest A Curth: a public-domain book in “Politics & Economics”, written…
Catalogue details
- Author
- Ernest A Curth
- Category
- Politics & Economics
- Language
- English
- Source
- HathiTrust