http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Geologic map of the Sif Mons quadrangle (V-31), Venus
National Aeronautics and Space Administration.
by Duncan L. Copp and John E. Guest ; prepared for the National Aeronautics and Space Administration.
Coordinates shown as: (E 330⁰--E 0⁰/N 25⁰--N 0⁰).
Mode of access: Intenet from USGS Web site. Address as of 8/21/07: http://pubs.usgs.gov/sim/2007/2898/sim2898.pdf; current access via PURL.
Includes text, bibliographical references, quadrangle location map, ancillary remote-sensing maps, graphs, and tables.