http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Shallow coal exploration drill-hole data
Alabama, Georgia, Kentucky, Louisiana, Mississippi, Missouri, North Carolina, South Carolina, Tennessee, and Texas
1 online resource (104 unnumbered pages) : color illustrations, color maps.
edited by Brett J. Valentine and Kristin O. Dennen.
Title from title screen (viewed on Feb. 7, 2012).
U.S. Geological Survey open-file report ; 2011-1261