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