http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Terrapin technologies manned Mars mission proposal
NASA/USRA University Advanced Design Program
Also available via Internet from the NASA Technical Report Server web site. Address as of 1/18/06: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900016711%5F1990016711.pdf ; current access is available via PURL.
Microfiche. [Washington, D.C.: National Aeronautics and Space Administration, 1990]. 3 microfiches.