Heller, D. A. (2004). Teachers wanted: Attracting and retaining good teachers. Association for Supervision and Curriculum Development.
Citazione stile Chigago Style (17a edizione)Heller, Daniel A. Teachers Wanted: Attracting and Retaining Good Teachers. Alexandria, Virginia: Association for Supervision and Curriculum Development, 2004.
Citatione MLA (9a ed.)Heller, Daniel A. Teachers Wanted: Attracting and Retaining Good Teachers. Association for Supervision and Curriculum Development, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.