APA-referens (7:e uppl.)

Newbold, P., Carlson, W. L., & Thorne, B. (2020). Statistics for business and economics (Ninth edition.). Pearson.

Chicago-referens (17:e uppl.)

Newbold, Paul, William L. Carlson, och Betty Thorne. Statistics for Business and Economics. Ninth edition. Harlow, England: Pearson, 2020.

MLA-referens (8:e uppl.)

Newbold, Paul, et al. Statistics for Business and Economics. Ninth edition. Pearson, 2020.