Prototype borehole miner selectively extracts gold from permafrost [[electronic resource]]

• Record Nr.: UNINA9910696453403321
• Pubbl/distr/stampa: [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]
• Descrizione fisica: 2 unnumbered pages : digital, PDF file
• Collana: Technology news ; ; no. 460
• Soggetti: Placer mining - United States
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Title from title screen (viewed on Mar. 7, 2008).; "July 1997."