Não informado. (1948). Journal of the Institute of Navigation. Institute of Navigation.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of the Institute of Navigation. London: Institute of Navigation, 1948.
Lua MLA (8ú heag.)Não informado. Journal of the Institute of Navigation. Institute of Navigation, 1948.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.