Não informado. (1956). Bulletin. International Union for Conservation of Nature and Natural Resources.
Lua i Stíl Chicago (17ú heag.)Não informado. Bulletin. Brussels: International Union for Conservation of Nature and Natural Resources, 1956.
Lua MLA (8ú heag.)Não informado. Bulletin. International Union for Conservation of Nature and Natural Resources, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.