Não informado. (1961). IUCN bulletin. International Union for Conservation of Nature and Natural Resources.
Lua i Stíl Chicago (17ú heag.)Não informado. IUCN Bulletin. Morges, Suíça: International Union for Conservation of Nature and Natural Resources, 1961.
Lua MLA (8ú heag.)Não informado. IUCN Bulletin. International Union for Conservation of Nature and Natural Resources, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.