Cita APA (7th ed.)

DiPaola, M. F., & Hoy, W. K. (2008). Principals improving instruction: Supervision, evaluation, and professional development. Pearson/A and B.

Cita Chicago (17th ed.)

DiPaola, Michael F., i Wayne K. Hoy. Principals Improving Instruction: Supervision, Evaluation, and Professional Development. Boston, Mass: Pearson/A and B, 2008.

Cita MLA (9th ed.)

DiPaola, Michael F., i Wayne K. Hoy. Principals Improving Instruction: Supervision, Evaluation, and Professional Development. Pearson/A and B, 2008.