Gross, S. J. (2004). Promises kept: Sustaining school and district leadership in a turbulent era. Association for Supervision and Curriculum Development.
Chicago-Zitierstil (17. Ausg.)Gross, Steven J. Promises Kept: Sustaining School and District Leadership in a Turbulent Era. Alexandria, Va: Association for Supervision and Curriculum Development, 2004.
MLA-Zitierstil (9. Ausg.)Gross, Steven J. Promises Kept: Sustaining School and District Leadership in a Turbulent Era. Association for Supervision and Curriculum Development, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.