Powell, P. H. (2016). The mathematics coaching handbook: Working with K-8 teachers to improve instruction (Second edition.). Routledge.
Chicago-Zitierstil (17. Ausg.)Powell, Pia Hansen. The Mathematics Coaching Handbook: Working with K-8 Teachers to Improve Instruction. Second edition. New York: Routledge, 2016.
MLA-Zitierstil (9. Ausg.)Powell, Pia Hansen. The Mathematics Coaching Handbook: Working with K-8 Teachers to Improve Instruction. Second edition. Routledge, 2016.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.