Cita APA (7th ed.)

Kirkpatrick, T. O., & Lewis, C. T. (1995). Effective supervision: Preparing for the 21st century. Dryden Press.

Cita Chicago (17th ed.)

Kirkpatrick, Thomas O., i Chad T. Lewis. Effective Supervision: Preparing for the 21st Century. Forth Worth: Dryden Press, 1995.

Cita MLA (9th ed.)

Kirkpatrick, Thomas O., i Chad T. Lewis. Effective Supervision: Preparing for the 21st Century. Dryden Press, 1995.