United States National Aeronautics and Space Administration. creator text Washington, D.C NASA Headquarters monographic Description based on: 1999; title from title screen (viewed on July 14) United States National Aeronautics and Space Administration. Periodicals Freedom of information Government information NAS 1.11: NAS 1.11: http://purl.access.gpo.gov/GPO/LPS114774 http://purl.access.gpo.gov/GPO/LPS114774 20160527184039.0 301524