Levine, D. M., Berenson, M. L., & Stepehn, D. (1999). Statistics for managers using Microsoft Excel (2nd ed.). Prentice Hall.
Cita Chicago (17th ed.)Levine, David M., Mark L. Berenson, i David Stepehn. Statistics for Managers Using Microsoft Excel. 2nd ed. Upper Saddle river, New Jersey: Prentice Hall, 1999.
Cita MLA (9th ed.)Levine, David M., et al. Statistics for Managers Using Microsoft Excel. 2nd ed. Prentice Hall, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.