Não informado. (1939). Aircraft. Farm Equipment Publishing.
Lua i Stíl Chicago (17ú heag.)Não informado. Aircraft. Toronto, Canada: Farm Equipment Publishing, 1939.
Lua MLA (8ú heag.)Não informado. Aircraft. Farm Equipment Publishing, 1939.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.