Description
Item Description:Title from title screen (viewed Feb. 6, 2009).
Electronic resource.
Physical Description:19 pages : digtial, PDF file.
Format:Mode of access: Internet from the NTRS web site. Address as of 2/06/09: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19890019127%5F1989019127.pdf ; current access is available via PURL.