Erwin, J. C. (2004). The classroom of choice: Giving students what they need and getting what you want. Association for Supervision and Curriculum Development.
Citazione stile Chigago Style (17a edizione)Erwin, Jonathan C. The Classroom of Choice: Giving Students What They Need and Getting What You Want. Alexandria, VA: Association for Supervision and Curriculum Development, 2004.
Citatione MLA (9a ed.)Erwin, Jonathan C. The Classroom of Choice: Giving Students What They Need and Getting What You Want. Association for Supervision and Curriculum Development, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.