Não informado. (1927). Abstracts from the Scientific and Technical Press. Royal Aeronautical Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Abstracts from the Scientific and Technical Press. London: Royal Aeronautical Society, 1927.
Lua MLA (8ú heag.)Não informado. Abstracts from the Scientific and Technical Press. Royal Aeronautical Society, 1927.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.