http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
distribution, physical characteristics, oceanographic controls, and environmental threats
1 online resource (vi, 71 pages) : color illustrations, color maps.
Includes bibliographical references (pages 61-71).
U.S. Geological Survey open-file report ; 2019-1019