Halloran, J. (1981). Supervision: The art of management. Prentice-Hall.
Cita Chicago (17th ed.)Halloran, Jack. Supervision: The Art of Management. Englewood Cliffs, N.J.: Prentice-Hall, 1981.
Cita MLA (9th ed.)Halloran, Jack. Supervision: The Art of Management. Prentice-Hall, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.