Não informado. (1949). Aviation operations. Conover-Mast Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Aviation Operations. New York: Conover-Mast Publications, 1949.
Lua MLA (8ú heag.)Não informado. Aviation Operations. Conover-Mast Publications, 1949.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.