Não informado. (1976). FAA general aviation news. Federal Aviation administration.
Lua i Stíl Chicago (17ú heag.)Não informado. FAA General Aviation News. Washington: Federal Aviation administration, 1976.
Lua MLA (8ú heag.)Não informado. FAA General Aviation News. Federal Aviation administration, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.