Não informado. (1927). Bulletin du Bureau International d' Education. Bureau International d' Education.
Lua i Stíl Chicago (17ú heag.)Não informado. Bulletin Du Bureau International D' Education. Geneve, Suíça: Bureau International d' Education, 1927.
Lua MLA (8ú heag.)Não informado. Bulletin Du Bureau International D' Education. Bureau International d' Education, 1927.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.