Pollock, J. E., & Ford, S. M. (2009). Improving student learning one principal at a time. Association for Supervision and Curriculum Development.
Chicago-Zitierstil (17. Ausg.)Pollock, Jane E., und Sharon M. Ford. Improving Student Learning One Principal at a Time. Alexandria, VA: Association for Supervision and Curriculum Development, 2009.
MLA-Zitierstil (9. Ausg.)Pollock, Jane E., und Sharon M. Ford. Improving Student Learning One Principal at a Time. Association for Supervision and Curriculum Development, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.