Não informado. (1949). Aeronautical Quarterly. Royal Aeronautical Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Aeronautical Quarterly. London: Royal Aeronautical Society, 1949.
Lua MLA (8ú heag.)Não informado. Aeronautical Quarterly. Royal Aeronautical Society, 1949.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.