Newbold, P., Carlson, W. L., & Thorne, B. (2020). Statistics for business and economics (Ninth edition.). Pearson.
Lua i Stíl Chicago (17ú heag.)Newbold, Paul, William L. Carlson, agus Betty Thorne. Statistics for Business and Economics. Ninth edition. Harlow, England: Pearson, 2020.
Lua MLA (8ú heag.)Newbold, Paul, et al. Statistics for Business and Economics. Ninth edition. Pearson, 2020.
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