Não informado. (1997). School leadership & management. Carfax Publishing.
Chicago-Zitierstil (17. Ausg.)Não informado. School Leadership & Management. Oxfordshire, Inglaterra: Carfax Publishing, 1997.
MLA-Zitierstil (8. Ausg.)Não informado. School Leadership & Management. Carfax Publishing, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.