http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Improvement of GRCop-84 through the addition of zirconium
1 online resource (35 pages) : illustrations (some color).
Title from title screen (viewed on Nov. 13, 2012).
Includes bibliographical references (pages 34-35).
Sponsored by National Aeronautics and Space Administration WBS 463169.04.03.05.01