http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Framework for ecological monitoring on lands of the Alaska National Wildlife Refuges and their partners
1 online resource (vi, 94 pages) : illustrations (some color), color maps.
Includes bibliographical references (pages 48-51).
U.S. Geological Survey open-file report ; 2010-1300