Não informado. (1999). Navigation. Institute of Navigation.
Lua i Stíl Chicago (17ú heag.)Não informado. Navigation. Alexandria, Va: Institute of Navigation, 1999.
Lua MLA (8ú heag.)Não informado. Navigation. Institute of Navigation, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.