http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
method for determining average beach slope and beach slope variability for U.S. sandy coastlines
1 online resource (iv, 5 pages) : color illustrations, map.
by Kara S. Doran, Joseph W. Long, and Jacquelyn R. Overbeck.
Includes bibliographical references (page 5).
U.S. Geological Survey open-file report ; 2015-1053