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Prototype borehole miner selectively extracts gold from permafrost.
Connect to full text Available online
View online- Format:
- Book
- Government document
- Series:
- Technology news ; no. 460
- Language:
- English
- Subjects (All):
- Placer mining--United States.
- Placer mining.
- United States.
- Physical Description:
- 1 online resource (2 unnumbered pages)
- Place of Publication:
- [Washington, DC] : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [1997]
- Notes:
- Title from title screen (viewed on March 7, 2008).
- "July 1997."
- OCLC:
- 213094092
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