Engineering & TechnologyMethods and costs of mining fluorspar from a flat-bedded deposit at Cave-In-Rock, IllA. B Needham![Methods and costs of mining fluorspar from a flat-bedded deposit at Cave-In-Rock, Ill]()
Methods and costs of mining fluorspar from a flat-bedded deposit at Cave-In-Rock, Ill
A. B Needham
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“Methods and costs of mining fluorspar from a flat-bedded deposit at Cave-In-Rock, Ill” by A. B Needham: a public-domain book in “Engineering & Technology”…
Catalogue details
- Author
- A. B Needham
- Category
- Engineering & Technology
- Language
- English
- Source
- HathiTrust