Não informado. (1999). Technology week. American Aviation Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Technology Week. Washington: American Aviation Publications, 1999.
Lua MLA (8ú heag.)Não informado. Technology Week. American Aviation Publications, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.