Epstein, B. (1974). Principals: An organized force for leadership. Association of Secondary School Principals.
Chicago-Zitierstil (17. Ausg.)Epstein, Benjamin. Principals: An Organized Force for Leadership. Reston, Va: Association of Secondary School Principals, 1974.
MLA-Zitierstil (9. Ausg.)Epstein, Benjamin. Principals: An Organized Force for Leadership. Association of Secondary School Principals, 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.