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Lua i Stíl Chicago (17ú heag.)National Research Council (U.S.). Committee for the Review of NASA's Revolutionize Aviation Program agus National Research Council (United States). Aeronautics and Space Engineering Board. Review of NASA's Aerospace Technology Enterprise: An Assessment of NASA's Aeronautics Technology Programs. Washington, D.C: National Academies Press, 2004.
Lua MLA (9ú heag.)National Research Council (U.S.). Committee for the Review of NASA's Revolutionize Aviation Program agus National Research Council (United States). Aeronautics and Space Engineering Board. Review of NASA's Aerospace Technology Enterprise: An Assessment of NASA's Aeronautics Technology Programs. National Academies Press, 2004.