Heller, D. A. (2004). Teachers wanted: Attracting and retaining good teachers. Association for Supervision and Curriculum Development.
Chicago-Zitierstil (17. Ausg.)Heller, Daniel A. Teachers Wanted: Attracting and Retaining Good Teachers. Alexandria, Va: Association for Supervision and Curriculum Development, 2004.
MLA-Zitierstil (9. Ausg.)Heller, Daniel A. Teachers Wanted: Attracting and Retaining Good Teachers. Association for Supervision and Curriculum Development, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.