Não informado. (1999). Shools in the middle. National Association of Secondary School Principals.
Lua i Stíl Chicago (17ú heag.)Não informado. Shools in the Middle. Reston, Va: National Association of Secondary School Principals, 1999.
Lua MLA (8ú heag.)Não informado. Shools in the Middle. National Association of Secondary School Principals, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.