Lipham, J. M. (1981). Effective principal, effective school. National Association of Secondary School Principals.
Chicago-Zitierstil (17. Ausg.)Lipham, James M. Effective Principal, Effective School. Reston, Va: National Association of Secondary School Principals, 1981.
MLA-Zitierstil (9. Ausg.)Lipham, James M. Effective Principal, Effective School. National Association of Secondary School Principals, 1981.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.