Coal-quality information--key to the efficient and environmentally sound use of coal.
Contributors: Geological Survey (U.S.)
Series: USGS fact sheet -- FS 171-97.; Fact sheet (Geological Survey (U.S.)) -- FS-97-171.
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey
Published: 1997
Place of publication: [Reston, VA]
Language: eng
Subjects: Coal -- Environmental aspects -- United States
Other titles: USGS, science for a changing world.
Notes: "October 1997."

Shipping list no.: 98-0147-P.

Also available via Internet from the USGS web site. Address as of 6/17/04: http://energy.usgs.gov/factsheets/coalqual/coalqual.html; current access is available via PURL.