Não informado. (1972). Educational Administration. British Educational Administration Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Educational Administration. Bristol, Inglaterra: British Educational Administration Society, 1972.
Lua MLA (8ú heag.)Não informado. Educational Administration. British Educational Administration Society, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.