Leonard, E. C., & Edwin C. Leonard; Raymond L. Hilgert. (2004). Supervision: Concepts and practices of management. Mason, OH: Thomson/South-Western.
শিকাগো স্টাইলে সাইটেশনLeonard, Edwin C., এবং Edwin C. Leonard; Raymond L. Hilgert. Supervision: Concepts and Practices of Management. Mason, OH: Thomson/South-Western, 2004.
এমএলএ সাইটেশনLeonard, Edwin C., এবং Edwin C. Leonard; Raymond L. Hilgert. Supervision: Concepts and Practices of Management. Mason, OH: Thomson/South-Western, 2004.
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