Massie, J. L. (1979). Essentials of management (3rd ed.). Prentice-Hall.
Cita Chicago (17th ed.)Massie, Joseph L. Essentials of Management. 3rd ed. Englewood Cliffs, N.J. ; New Delhi: Prentice-Hall, 1979.
Cita MLA (8th ed.)Massie, Joseph L. Essentials of Management. 3rd ed. Prentice-Hall, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.