Citazione Stile APA (7a Edizione)

Snow, D., & Barley, Z. A. (2005). Classroom strategies for helping at-risk students. Association for Supervision and Curriculum Development.

Citazione stile Chigago Style (17a edizione)

Snow, David, e Zoe A. Barley. Classroom Strategies for Helping At-risk Students. Alexandria, VA: Association for Supervision and Curriculum Development, 2005.

Citatione MLA (9a ed.)

Snow, David, e Zoe A. Barley. Classroom Strategies for Helping At-risk Students. Association for Supervision and Curriculum Development, 2005.