http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Phoenix North : 1:100,000-scale topographic map : 30 x 60 minute series (topographic)
National Science and Technology Center (U.S.)
edited and published by the Bureau of Land Management, National Science and Technology Center ... in cooperation with ... Arizona State Office.
Relief shown by contours and spot heights.
Includes location map and indexes to adjoining maps and to 1:24,000-scale maps.