Não informado. Thrust for educational leadership. Association of California School Administrators.
Chicago-referens (17:e uppl.)Não informado. Thrust for Educational Leadership. Burlingame, Calif: Association of California School Administrators.
MLA-referens (8:e uppl.)Não informado. Thrust for Educational Leadership. Association of California School Administrators.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.