Newbold, P., & Thorne, B. M. (2007). Statistics for business and economics (6th ed.). Pearson.
Cita Chicago (17th ed.)Newbold, Paul, i Belly M. Thorne. Statistics for Business and Economics. 6th ed. New Delhi: Pearson, 2007.
Cita MLA (9th ed.)Newbold, Paul, i Belly M. Thorne. Statistics for Business and Economics. 6th ed. Pearson, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.