Não informado. (1930). Journal of Aviation Medicine. Aerospace Medical Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Aviation Medicine. Saint Paul, Minn: Aerospace Medical Association, 1930.
Lua MLA (8ú heag.)Não informado. Journal of Aviation Medicine. Aerospace Medical Association, 1930.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.