http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
USGS compilation of Geographic Information System (GIS) data of coal mines and coal-bearing areas in Mongolia
1 online resource (v, 18 pages) : color illustrations, maps.
by Michael H. Trippi, and Harvey E. Belkin.
Includes bibliographical references (page 6).
U.S. Geological Survey open-file report ; 2015-1144