Não informado. Visual education. National Committee for Visual Aids in Education.
Lua i Stíl Chicago (17ú heag.)Não informado. Visual Education. London: National Committee for Visual Aids in Education.
Lua MLA (8ú heag.)Não informado. Visual Education. National Committee for Visual Aids in Education.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.