Não informado. (1999). High school magazine: For principals, assistant principals, and all high school leaders. National Association of Secondary School Principals.
Lua i Stíl Chicago (17ú heag.)Não informado. High School Magazine: For Principals, Assistant Principals, and All High School Leaders. Reston, Va: National Association of Secondary School Principals, 1999.
Lua MLA (8ú heag.)Não informado. High School Magazine: For Principals, Assistant Principals, and All High School Leaders. National Association of Secondary School Principals, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.