Project Gemini technology and operations [electronic resource] : a chronology / prepared by James M. Grimwood and Barton C. Hacker, with Peter J. Vorzimmer.
Imprint
Washington, D.C. : Scientific and Technical Information Office, National Aeronautics and Space Administration, [1969]
Electronic reproduction. Washington, D.C. : NASA History Office. Mode of access: Internet from the NASA History Office web site. Address as of 5/25/06: http://history.nasa.gov/SP-4002/cover.htm; current access is available via PURL.
