http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Gravity data from the San Pedro River Basin, Cochise County, Arizona
1 online resource (iv, 11 pages) : color illustrations + 4 appendixes.
by Jeffrey R. Kennedy and Daniel Winester.
Includes bibliographical references (page 11).
San Pedro River Watershed (Mexico and Ariz.)
U.S. Geological Survey open-file report ; 2011-1287