http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
National Center for Health Statistics (U.S.)
1 online resource (7 pages) : color illustrations, color map.
Patrick Drake, Anne K. Driscoll, and T.J. Mathews.
Includes bibliographical references (page 7).