Massie, J. L. (1987). Essentials of management (4th ed.). Prentice-Hall.
Cita Chicago (17th ed.)Massie, Joseph L. Essentials of Management. 4th ed. Englewood Cliffs, N.J: Prentice-Hall, 1987.
Cita MLA (9th ed.)Massie, Joseph L. Essentials of Management. 4th ed. Prentice-Hall, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.