Hitt, M. A., Black, J. S., & Porter, L. W. (2009). Management (2nd ed.). Pearson Prentice Hall.
Cita Chicago (17th ed.)Hitt, Michael A., J. Stewart Black, i Lyman W. Porter. Management. 2nd ed. Upper Saddle River, N. J: Pearson Prentice Hall, 2009.
Cita MLA (9th ed.)Hitt, Michael A., et al. Management. 2nd ed. Pearson Prentice Hall, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.