Não informado. (1977). Journal of energy. American Institute of Aeronautics and Astronautics.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Energy. New York: American Institute of Aeronautics and Astronautics, 1977.
Lua MLA (8ú heag.)Não informado. Journal of Energy. American Institute of Aeronautics and Astronautics, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.