http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Hazards Data Distribution System is updated
1 online resource (1 unnumbered page) : illustrations
by Brenda K. Jones and Robert D. Bewley.
Title from PDF caption title screen (USGS, viewed July 20, 2010).
Fact sheet (Geological Survey (U.S.)) ; 2010-3055