Longwall mining.

• Corporate Author: United States. Office of Coal, Nuclear, Electric, and Alternate Fuels
• Format: Electronic eBook
• Language: English
• Published: Washington, D.C. : Energy Information Administration, Office of Coal, Nuclear, Electric, and Alternate Fuels, U.S. Dept. of Energy, 1995.
• Subjects: Longwall mining > United States.; Coal mines and mining > United States.; elektronické knihy; electronic books
• ISBN: 9781613440148; 1613440146
• Physical Description: 1 online resource (ix, 60 pages) : charts, photographs