Não informado. (1959). Air Engineering. Business News Publishing.
Lua i Stíl Chicago (17ú heag.)Não informado. Air Engineering. Detroit, Mich: Business News Publishing, 1959.
Lua MLA (8ú heag.)Não informado. Air Engineering. Business News Publishing, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.