APA Style

POWELL, W., KUSUMA-POWELL, O. (2015). Teacher Self-Supervision: Why Teacher Evaluation Has Failed and What We Can Do About it . Woodbridge, Suffolk: John Catt Educational Ltd.

MLA Style

POWELL, William., KUSUMA-POWELL, Ochan. "Teacher Self-Supervision: Why Teacher Evaluation Has Failed and What We Can Do About it". Woodbridge, Suffolk: John Catt Educational Ltd, 2015. Text.