http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Preliminary map of fractures formed in the Summit Road-Skyland Ridge area during the Loma Prieta, California, earthquake of October 17, 1989
Relief shown by contours and spot heights.
Open-file report (Geological Survey (U.S.)) ; 89-686