Hilgert, R. L., & Leonard, E. C. (1995). Supervision: Concepts and practices of management (6th ed.). South-Western College Pub.
Chicago Style (17. basım) AtıfHilgert, Raymond L., ve Edwin C. Leonard. Supervision: Concepts and Practices of Management. 6th ed. Cincinnati, Ohio: South-Western College Pub, 1995.
MLA (9th ed.) AtıfHilgert, Raymond L., ve Edwin C. Leonard. Supervision: Concepts and Practices of Management. 6th ed. South-Western College Pub, 1995.
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