DuFour, R., DuFour, R. B., & Eaker, R. E. (2008). Revisiting professional learning communities at work: New insights for improving schools. Solution Tree.

DuFour, Richard, Rebecca Burnette DuFour, and Robert E. Eaker. Revisiting Professional Learning Communities at Work: New Insights for Improving Schools. Bloomington: Solution Tree, 2008.

DuFour, Richard, et al. Revisiting Professional Learning Communities at Work: New Insights for Improving Schools. Solution Tree, 2008.