Παραπομπή σε μορφή APA (7η εκδ.)

Leonard, E. C. (2016). Supervision: Concepts and practices of management (Eleventh edition.). Cengage Learning.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Leonard, Edwin C. Supervision: Concepts and Practices of Management. Eleventh edition. Boston, Massachusetts: Cengage Learning, 2016.

Παραπομπή σε μορφή MLA (9th εκδ.)

Leonard, Edwin C. Supervision: Concepts and Practices of Management. Eleventh edition. Cengage Learning, 2016.