Heller, D. A. (2004). Teachers wanted: Attracting and retaining good teachers. Association for Supervision and Curriculum Development.
Chicago-viite (17. p.)Heller, Daniel A. Teachers Wanted: Attracting and Retaining Good Teachers. Alexandria, Virginia: Association for Supervision and Curriculum Development, 2004.
MLA-viite (9. p.)Heller, Daniel A. Teachers Wanted: Attracting and Retaining Good Teachers. Association for Supervision and Curriculum Development, 2004.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.