Levine, D. M., Krehbiel, T. C., & Berenson, M. L. (2004). Business statistics: A first course (3rd ed.). Pearson Education.
Cita Chicago (17th ed.)Levine, David M., Timothy C. Krehbiel, i Mark L. Berenson. Business Statistics: A First Course. 3rd ed. New Delhi: Pearson Education, 2004.
Cita MLA (9th ed.)Levine, David M., et al. Business Statistics: A First Course. 3rd ed. Pearson Education, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.