Não informado. (2001). Scientific and technical aerospace reports. National Aeronautics and Space Administration.
Lua i Stíl Chicago (17ú heag.)Não informado. Scientific and Technical Aerospace Reports. Washington: National Aeronautics and Space Administration, 2001.
Lua MLA (8ú heag.)Não informado. Scientific and Technical Aerospace Reports. National Aeronautics and Space Administration, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.