http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 online resource (vi, 43 pages) : illustrations (some color), maps.
Title from PDF title screen (SI, viewed Aug. 25, 2009).
Includes bibliographical references (pages 42-43).
Smithsonian contributions to the earth sciences ; no. 31