Also available via Internet from the NTRS web site. Address as of 09/09/08: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930007199%5F1993007199.pdf ; current access is available via PURL.
Microfiche. [Washington, D.C. : National Aeronautics and Space Administration], 1993. 3 microfiches.