http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Proceedings of the X-15 first flight 30th anniversary celebration
proceedings of an anniversary celebration held at NASA Ames Research Center, Dryden Flight Research Facility, Edwards, California, June 8, 1989
National Aeronautics and Space Administration.
Scientific and Technical Information Division.
vii, 166 pages : illustrations, maps ; 28 cm.